Abstract: Dampened and zoned innersprings for use in support systems such as mattresses and furniture have dampening inserts in the form of foam pieces which fit integrally with the springs or coils of an innerspring. Dampened innersprings with one or more foam dampeners inserted between springs or coils of an innerspring, and more particularly foam dampener inserts which are configured to extend between multiple adjacent or aligned springs or coils, and which also have segments which fit between individual turns or convolutions of each spring or coil with which the insert is engaged. Mechanical engagement of the innerspring by the foam dampening inserts insures alignment and registration of the innerspring and foam components, and compression and recoil of the individual coils of the innerspring occurs in conjunction with compression and decompression of the foam dampening inserts.

Abstract: An innerspring assembly includes a plurality of first springs arranged side-by-side in axis-parallel relationship and wound in the form of a helix. Several first springs which are arranged behind one another in a row define a spring strand. An edge reinforcement is formed by second springs placed on at least two opposite borders of the innerspring assembly, with each second spring being connected with two first springs of an adjacent spring strand.

Abstract: An adjustable bed includes an articulated deck comprising head, seat, leg and foot deck boards hingedly joined together and supported from a frame located above a stationary base. A intermediate cushioning layer, including a pocketed coil spring assembly, is secured to the deck boards. A mattress or similar structure resides on top of the intermediate cushioning layer.

Abstract: A stiffening system for the perimeter edges of a foam core mattress comprising a coil spring (or other spring-based) structure disposed along one or more perimeter edges (e.g., one or both side edges, the foot, the head, or a combinations thereof including the foot and both side edges) of a mattress having a foam sleeping area. The perimeter spring structure is rectangular or square in cross-section and provides sufficient stiffness for comfortable seating on the edges of the mattress and is joined to the foam core by planar fabric elements that span the joint between them and are attached to both. The sleep area provides the softness and other salutary effects of a foam sleeping surface while the stiffer spring perimeter element provides the rigidity need for comfortable seating and wear resistance.

Abstract: An edge support for reinforcing an edge of a spring core is provided. The edge support includes a plurality of engaging members that are movable between flat and folded positions. In the flat position, an engaging member is generally aligned with the rest of the edge support. In the folded position, the engaging member extends laterally from the rest of the edge support. With the engaging members in the flat position, the edge support has a relatively thin thickness allowing the edge support to be rolled which may be beneficial for the shipping and handling of the edge support. During the assembling of the mattress, the engaging members may be moved to the folded position such that engaging members extend inwardly into the spring core between the spring coils of the spring core.

Abstract: A mattress foundation with a perimeter structure has a frame, springs mounted upon the frame, and a grid supported by the springs, and perimeter structure at a perimeter of the frame which extends from the frame to the grid, forming an exterior wall which extends from the frame to a border wire of the grid. When the perimeter structure is made of structural and reflexive material such as closed-cell foam, it co-acts with the grid and springs and provides additional support to the perimeter region of the grid and foundation. The exterior wall of the perimeter structure forms a solid surface over which padding or upholstery is placed.

Abstract: A mattress and a method of manufacturing a mattress are disclosed. The mattress includes a mattress core, a side rail joined to the mattress core by a one or more adhesive patches, optionally a deck applied over an area of the mattress core and joined to the mattress core by adhesive patches, and an upholstery layer defining a sleep surface applied over the deck or the mattress core and joined to the deck by adhesive patches. The adhesive patches have a bonding strength sufficient to maintain a relative position between the various mattress components at least during assembly of the mattress. The upholstery layer is permanently secured to the side rail by, for example, sewing or stapling.

Abstract: A mattress, preferably for use on a bed, comprising a plurality of springs (2) arranged in a mattress body. The mattress is characterized in that at least a part of the mattress body is formed of an insert element (5) of foam plastic material. This insert element is preferably positioned at the end of the mattress.

Abstract: A mattress has a perimeter rail having a head end, a foot end, and two sides, each having an inner surface, and at least two substantially parallel rectilinear sections. Each section comprises an array of springs whose tension is selected to provide a predetermined firmness for that section. Each adjacent pair of sections is urged into a spaced-apart relationship by a spacing means, where each spacing means comprises a flexible spacer. The flexible spacer restricts or substantially eliminates the translation of movements between the sections of the mattress, while avoiding the use of uncomfortable separation means.

Abstract: The present invention concerns a frame mattress comprising a frame (1) with a spring inlay (3) surrounded by the frame, and a material (2) over the spring inlay, together with a reversible mattress (5), arranged for abutting the material (2), and a cover (7) enveloping the reversible mattress (5) and at least partly the frame (1), characterised in that the material (2) is at least partly detachable and that the spring inlay (3), constituting a principally form stable unit, is reversibly arranged in the frame (1).

Abstract: A mattress is provided comprising a plurality of inner coil springs and an edge support. The edge support comprises a foam border extending along the outer perimeter of the mattress and around the inner coil springs, a plurality of spaced slits inserted into the foam border, and a plurality of edge springs inserted into the plurality of spaced slits.

Abstract: This invention relates to a foam integrated innerspring mattress and method of manufacture wherein a flexible polyurethane foam is adhered onto the top and bottom of individually wrapped pocket innersprings, and additional polyurethane foam is molded onto the sides of the mattress.

Abstract: A mattress or seating spring core assembly and method of manufacture which comprises interconnected rows of coil springs wherein each row terminates in a cut wire end which is bent inwardly into one of the end coils and in which the spring core assembly is surrounded on all sides by foam panels and is devoid of any border rods.

Abstract: A stiffening system for the perimeter edges of a foam core mattress comprising a coil spring (or other spring-based) structure disposed along one or more perimeter edges (e.g., one or both side edges, the foot, the head, or a combinations thereof including the foot and both side edges) of a mattress having a foam sleeping area. The perimeter spring structure is rectangular or square in cross-section and provides sufficient stiffness for comfortable seating on the edges of the mattress and is joined to the foam core by planar fabric elements that span the joint between them and are attached to both. The sleep area provides the softness and other salutary effects of a foam sleeping surface while the stiffer spring perimeter element provides the rigidity need for comfortable seating and wear resistance.

Abstract: A corner guard arrangement for a box spring, the corner guard arrangement having first and second members formed of a sheet material and being interlocked together, the interlocking arrangement being such that the first and second members are in sliding engagement to permit adjustment for different height box springs, one end of each of the first and second members being engaged with a perimeter wire on the box spring. The arrangement permits a smooth covering of fabric material on the box spring.

Abstract: A mattress and a method of manufacturing a mattress are disclosed. The mattress includes a mattress core, a side rail joined to the mattress core by a one or more adhesive patches, optionally a deck applied over an area of the mattress core and joined to the mattress core by adhesive patches, and an upholstery layer defining a sleep surface applied over the deck or the mattress core and joined to the deck by adhesive patches. The adhesive patches have a bonding strength sufficient to maintain a relative position between the various mattress components at least during assembly of the mattress. The upholstery layer is permanently secured to the side rail by, for example, sewing or stapling.

Abstract: A molded foam-encased integrated flexible support device includes an innerspring positioned upon a three-dimensional thermoplastic foam deck as a flexible foundation, and a molded foam encasement which structurally integrates the foam deck with the innerspring by attachment to perimeter coils of the innerspring. A sculpted foam topper is adhesively bonded to a support surface of the foam-encased innerspring, forming a unitized mattress or support structure with fully integrated innerspring and internal and external foam components. The sculpted foam topper is designed with varying contours and densities to provide the desired support and feel characteristics for different comfort profiles. The foam encased innerspring with internal three-dimensional foam structures is upholstered for use as a mattress, seating, or other flexible support structure.

Abstract: Edge rails for a mattress core are combined with an upholstery layer to provide a pre-assembled work piece that provides a perimeter about a mattress core. The edge rails, which may be foam, may be attached to the upholstery layer with hinges that permit each edge rail to rotate relative to the upholstery layer between an unassembled, flat position and an assembled, upright position. In the unassembled position, the work piece may present a relatively flat profile for more convenient bulk storage. In the assembled position, the edge rails are positioned to closely surround a mattress core of suitable size.

Abstract: Specifically conceived for mattresses with springs (4), the mattress consists of a cylindrical tubular body (1, 1?) with a longitudinal cut line (2) in correspondence with one of its lines of symmetry, that connects its two open ends, towards which open a number of wide notches (3, 3?), with an isosceles trapezoid configuration that, together with the longitudinal opening (2) allow the male-female coupling of the corner piece to the springs (4) of the mattress, externally closing the set of springs at the corresponding corner to provide a smooth, continuous surface without any bulges, recesses or deformations.

Abstract: A bed assembly provides an enlarged sleeping surface area as compared to a standard Queen sized bed. Specifically, in the disclosed bed assemblies, the sleeping surface area is about 64 inches to about 68 inches wide and about 77 inches to about 82 inches long. This can be accomplished by providing both a mattress and a foundation having the appropriate, enlarged sleeping surface area, or by combining an enlarged mattress with a foundation having at least one standard Queen sized surface. The mattress and foundation can be fit into a bed frame made of a suitable size to fit the bottom surface of the foundation (i.e., either “enlarged” or standard Queen size). The enlarged sleeping surface of the bed may be between about 65 inches to about 67 inches wide and about 78 inches to about 80 inches long. This enlarged sleeping surface area provides a more comfortable and restful sleep for two occupants.

Abstract: Three-dimensional unitized thermoplastic foam structures are made by thermoplastic welding of different foam components. The unitized foam structures may include a planar base to which other foam components are welded to project from the base and provide a flexible three-dimensional structure. The thermal bonding or welding of the thermoplastic foam components creates a unitized structure which is both flexible and load bearing. For mattress and seating applications, the welded foam structures may be combined with an innerspring, and certain of the foam components of the structure may mechanically engage parts of the innerspring. The preferred foam deck has first and second panels interconnected by one or more webs. One or more foam decks may be employed. Other foam components may be attached to the foam decks or other components. The utilized foam structures can be employed as single or double-sided mattresses, seating structures or other flexible support structures.

Abstract: An anti-microbial/-allergenic sleep set and process of forming thereof is provided and comprises a mattress and box spring, each having an allergen-impermeable barrier layer incorporated within. The mattress comprises a support apparatus, a top and bottom panel, first and second flanges, a border, a foam layer, and a barrier layer. The border is positioned around the support apparatus, and is attached to the top and bottom panels. The foam layer, which can comprise a latex emulsion, is positioned between the support apparatus and the top and bottom panels. The barrier layer comprises a material configured to be impermeable by allergens, and is attached at its outer periphery to the interior facing sides of the top panel, the bottom panel, and the border.

Abstract: A coil spring containing mattress comprises a coil spring encased in a sealed container or casing. One or more compressible pads may be included within the casing. Desirably, these pads are of an open-celled foam material which may be compressed in response to applied pressure. Air may be allowed to flow from the mattress to facilitate compression of the mattress and then blocked to assist in maintaining the mattress in a compressed state, for example for shipment.

Abstract: A crowned mattress having an inner spring unit with a plurality of spring members, a foam layer, and a cover. Peripheral edges of the inner spring unit are compressed together by compression members to provide a crowning or bowing of the inner spring unit that is translated into a crowning of the mattress. The foam layer can also be crowned to provide additional crowning. Spring members within inner spring unit can be reinforced by resilient members to increase an effective spring rate of a reinforced spring member. Reinforced spring members are dispersed throughout the inner spring unit in a desired pattern.

Abstract: A mattress having an inverted top panel/border seam, with an optional appended decorative rope welting on the border is described. An inverted seam secures the top panel to the border portion of a mattress cover to eliminate bumps and creases found in conventional welted top seam. Manufacturing costs may be reduced by eliminating the need for an expensive table-mounted tape edge closure machine and/or skilled operators, since the inverted seam may be flay sewn with a conventional sewing machine or even hand-stitched. Alternatively, a conventional tape edge machine can be used with less-skilled labor and or reduced tape/welting material, as all of the stitches and welting are hidden inside the mattress by the inverted seam.

Abstract: A mattress innercore support system in the form of a padded tray with a substantially rigid bottom panel. The tray has of a perimeter sidewall that is preferably made of foam and attached to the bottom panel. The system is compatible with (and sized for) all standard mattress cores, e.g., coil spring, pocketed spring, foam, foam/coil composite, and all known sizes. The mattress innercore is attached to the bottom panel by an adhesive, which simplifies assembly and reduces manufacturing cost of the mattress.

Abstract: An improved spring support system is disclosed for use in seating or bedding. The invention includes an outer frame having opposed top edges. A plurality of vertically resilient members having top ends and lower ends are fixedly disposed within the outer frame in a plurality of rows and columns. An elastic top sheet is stretched between the opposed top edges of the frame and over the top ends of the vertically resilient members. The resilient top sheet and vertically resilient members cooperate to provide a resilient support surface for supporting a person seated or reclined on the support surface.

Abstract: A mattress includes a chamber defined by upper and lower panels and a peripheral border all constructed from synthetic polymeric/copolymeric plastic material and housing therein a spring unit. The spring unit includes a plurality of springs having upper ends connected to a peripheral border rod. The spring unit is devoid of a peripheral border rod at lower ends of the springs. Upper edges of the spring unit can be deformably gripped by the upper panel, the peripheral border and/or both to prevent “swimming pool” effect.

Abstract: A mattress comprises a support plate having a plurality of mounting holes, a plurality of independent spring assemblies individually mounted to the support plate, and a cover enclosing the support plate and the plurality of spring assemblies. Each of the spring assemblies includes a tubular mounting member fixed to the support plate preferably by snap-fit through a mounting hole in the support plate, a sliding cap axially movable relative to the mounting member, and a spring acting between the mounting member and the sliding cap, wherein the spring is axially compressible when the sliding cap is forced in an axial direction toward the support plate. A spacer of chosen length can be provided to set preload on the spring. In a “flippable” embodiment, the mounting member includes a mid-portion snap-fitted to the support plate and upper and lower portions each having a sliding cap associated therewith, wherein the spring acts between the two sliding caps.

Abstract: A crowned mattress having an inner spring unit with a plurality of spring members, a foam layer, and a cover. Peripheral edges of the inner spring unit are compressed together by compression members to provide a crowning or bowing of the inner spring unit that is translated into a crowning of the mattress. The foam layer can also be crowned to provide additional crowning. Spring members within inner spring unit can be reinforced by resilient members to increase an effective spring rate of a reinforced spring member. Reinforced spring members are dispersed throughout the inner spring unit in a desired pattern.

Abstract: A stiffening system for the perimeter edges of a foam core mattress comprising a coil spring (or other spring-based) structure disposed along one or more perimeter edges (e.g., one or both side edges, the foot, the head, or a combinations thereof including the foot and both side edges) of a mattress having a foam sleeping area. The perimeter spring structure is rectangular or square in cross-section and provides sufficient stiffness for comfortable seating on the edges of the mattress and is joined to the foam core by planar fabric elements that span the joint between them and are attached to both. The sleep area provides the softness and other salutary effects of a foam sleeping surface while the stiffer spring perimeter element provides the rigidity need for comfortable seating and wear resistance.

Abstract: A mattress having an inverted top panel/border seam, with an optional appended decorative rope welting on the border is described. An inverted seam secures the top panel to the border portion of a mattress cover to eliminate bumps and creases found in conventional welted top seam. Manufacturing costs may be reduced by eliminating the need for an expensive table-mounted tape edge closure machine and/or skilled operators, since the inverted seam may be flay sewn with a conventional sewing machine or even hand-stitched. Alternatively, a conventional tape edge machine can be used with less-skilled labor and or reduced tape/welting material, as all of the stitches and welting are hidden inside the mattress by the inverted seam.

Abstract: A mattress having a border rod assembly and at least one central spring core. The border rod assembly having individual border rods and corner pieces fitting together to create a contiguous border around and attached to the central spring core. A resilient, polymer material is used for at least one of the individual border rods. Border rod assemblies serve a dual purpose in mattress construction, acting both as a frame to which fabrics and foams may be attached and as a support structure for the central spring core, eliminating unsightly sagging and bowing at the mattress edge. Using resilient materials for the border rods allows the mattress to be used interchangeably with adjustable and non-adjustable foundations, while retaining the rigidity and desirable structural aspects of standard steel border rod mattresses.

Abstract: A box spring corner guard is disclosed which protects and reinforces the corner of a box spring. The box spring corner guard consists of a curved body having the shape of a 90 degree section of an imaginary cylinder with a concave inner surface and a convex outer surface. A locator flange extends from the concave inner surface adjacent the bottom end of the curved body. Strengthening ribs run along the length of the curved body to add rigidity. In one embodiment, the curved body also has a limit flange, similar to the locator flange, extending from the concave inner surface adjacent the top end of the curved body. The curved body is attached to the base of the box spring, but the curved body is not attached to the border wire.

Abstract: A coupled waveband (14, 21) suspension for bed underframes, seating, upholstery, and mattresses consists of several sinusoidal wavebands (14, 21) which run parallel and/or transversely to the longitudinal axis. Support elements (12, 35) are rigidly or moveably fixed to or ride on the crests or maxima of the wavebands (14, 21). The troughs or minima are supported by slide or roll bearing elements (17) affixed to the frame. A strong interactive coupling is achieved between the support elements (12, 35) causing a positive stroke of the less pressure-loaded segments and the appropriate support elements by the silmultaneous lowering of the pressure-loaded waveband segments. The wavebands (14, 21) are manufactured out of higher quality, elastically flexible sold plastic or foam material, or of spring steel band or wire, duralumin, or out of formed laminated wood.

Abstract: A stiffening system for the perimeter edges of a foam core mattress comprising a coil spring (or other spring-based) structure disposed along one or more perimeter edges (e.g., one or both side edges, the foot, the head, or a combinations thereof including the foot and both side edges) of a mattress having a foam sleeping area. The perimeter spring structure is rectangular or square in cross-section and provides sufficient stiffness for comfortable seating on the edges of the mattress and is joined to the foam core by planar fabric elements that span the joint between them and are attached to both. The sleep area provides the softness and other salutary effects of a foam sleeping surface while the stiffer spring perimeter element provides the rigidity need for comfortable seating and wear resistance.

Abstract: A box spring corner guard is disclosed which protects and reinforces the corner of a box spring. The box spring corner guard consists of a curved body having the shape of a 90 degree section of an imaginary cylinder with a concave inner surface and a convex outer surface. A locator flange extends from the concave inner surface adjacent the bottom end of the curved body. Strengthening ribs run along the length of the curved body to add rigidity. In one embodiment, the curved body also has a limit flange, similar to the locator flange, extending from the concave inner surface adjacent the top end of the curved body. The curved body is attached to the base of the box spring, but the curved body is not attached to the border wire.

Abstract: An attachment gusset with ruffled corners and method and machinery for manufacture provides a gusset formed of a continuous strip of material which is pleated at corners or turns in direction of the gusset to form ruffles which are attached to an adjacent layer of material. The ruffled gusset lies substantially flat against adjacent layers of material to which it is attached in a pressed state, and can be expanded to accommodate dimensional structures, such as cushioned pads. The number and spacing of pleats can be adjusted according to the radius of the corners or turns in the gusset. In a method of construction of the gusset, the pleats are formed as the material to which the gusset is attached is turned relative to the sewing point of attachment.

Abstract: An innerspring mattress having an edge support insert that overlaps the upper and lower border wires of the mattress. The edge support insert has a C-shaped cross-section or the cross-section may gradually thicken from interior corners of the “C” toward the center forming a putative E-shaped cross-section. The edge support may be a continuous unit that is installed around the entire perimeter of the innerspring mattress assembly. The simple cross-section allows efficient extrusion manufacturing and is efficiently installed around the innerspring mattress coil matrix.

Abstract: A bed assembly provides an enlarged sleeping surface area as compared to a standard Queen sized bed. Specifically, in the disclosed bed assemblies, the sleeping surface area is about 64 inches to about 68 inches wide and about 77 inches to about 82 inches long. This can be accomplished by providing both a mattress and a foundation having the appropriate, enlarged sleeping surface area, or by combining an enlarged mattress with a foundation having at least one standard Queen sized surface. The mattress and foundation can be fit into a bed frame made of a suitable size to fit the bottom surface of the foundation (i.e., either “enlarged” or standard Queen size). The enlarged sleeping surface of the bed may be between about 65 inches to about 67 inches wide and about 78 inches to about 80 inches long. This enlarged sleeping surface area provides a more comfortable and restful sleep for two occupants.

Abstract: A box spring corner guard is disclosed which protects and reinforces the corner of a box spring. The box spring corner guard consists of a curved body having the shape of a 90 degree section of an imaginary cylinder with a concave inner surface and a convex outer surface. A locator flange extends from the concave inner surface adjacent the bottom end of the curved body. Strengthening ribs run along the length of the curved body to add rigidity. In one embodiment, the curved body also has a limit flange, similar to the locator flange, extending from the concave inner surface adjacent the top end of the curved body. The curved body is attached to the base of the box spring, but the curved body is not attached to the border wire.

Abstract: A bed mattress of a mattress body having a spring frame with several springs disposed with a certain intervals therein, two pad layers on the top and bottom sides of said spring frame and at least one cushion member disposed on either or both surfaces of said two pad layers, further comprising; a foam-molded wall member for surrounding said mattress body; and a mattress cover for covering the structural body of said mattress body and said wall member, for simplifying the process of manufacturing the bed mattress, and enhancing workability and productivity is disclosed.

Abstract: A mattress including (a) an innerspring, (b) one or more upholstery topper layers including an edge support that is a foam construction with at least two foam layers, and (c) one or more quilt panel layers. The at least two foam layers form the edge support or firming perimeter edge, wherein the first foam layer has (1) a defined firmness, (2) a thickness greater at its perimeter, and (3) a central portion forming a receiving space. The second foam layer has a defined firmness less than the first foam layer and is nestably insertable into the receiving space of the first foam layer. The firming perimeter edge functions to provide a firmer mattress edge without compromising the thickness of the mattress or requiring additional materials or labor during manufacturing.

Abstract: A bedding or seating product having a spring core made up of a plurality of coil springs arranged in rows and columns. The spring core is divided into sections, each section having springs of an identical height. The springs of one section are taller than the springs of another section. Filler is placed above the shorter springs in select sections. The taller springs are of a greater firmness than the filler material, thus creating a posturized effect.

Abstract: A mattress is provided having an innerspring, at least one upholstery layer, which includes at least one foam layer, and quilt panel layers. The upholstery layer has an edged support layer, a steel wire grid laminated to the edged support layer, and a firm foam layer laminated to the steel wire grid. The steel wire grid serves to provide support and to reduce the sagging effect caused when adding additional foam layers. The firm foam layer provides support distributed even across the mattress and may be used alone or in combination with the steel wire grid.

Abstract: A mattress has a main sleep area surrounded by a perimeter trim. Both the main sleep area and the perimeter trim are formed from wire springs contained within pockets of soft material. The wire springs in the sleep area are arranged in honeycomb nested rows. The wire springs of the perimeter trim, which are of different wire construction with different flex characteristic from the wire springs in the main sleep area, are arranged in side by side rows which are not honeycomb nested. In addition, the wire springs of the perimeter trim are pivotally linked directly to one another across the perimeter trim, both widthwise and lengthwise of the mattress which produces an essentially non-feelable flex transition between the perimeter trim and the main sleep area of the mattress.

Abstract: Extruded foam reinforcement pieces are described for assembly in connection with innerspring assemblies and mattresses. The pieces have optimized cross-sectional configurations which can be consistently extruded in continuous strands which are then cut to length according to the type and size of innerspring assembly. The pieces are configured to engage various components of the innerspring, including spring coils, spaces between spring coils, and framing borderwires. The foam reinforcement pieces facilitate attachment and alignment of overlying material such as padding and upholstery and function to improve the support characteristics of an innerspring.

Abstract: A mattress having an anti-roll off feature is disclosed. The mattress has an innerspring unit having an array of coiled compression springs separating opposed parallel surfaces, wherein the surfaces are covered by a webbing made of a nonwoven polypropylene, and wherein the outer periphery of the webbing has horizontally disposed rigid foam planks wrapped and held in place by the webbing. The foam planks are formed from polyethylene foam. Additionally, vertically disposed rigid polyethylene foam planks with cross members are situated within the innerspring unit between the compressions springs at the periphery of the innerspring unit. The foam planks with cross members provide the support needed to achieve the anti-roll off feature. In an alternative embodiment, rigid polyethylene foam cylinders are placed within the rows of compression springs at the periphery of the innerspring unit to provide support at those locations.

Abstract: A mattress having an anti-roll off feature is disclosed. The mattress has an innerspring unit having an array of coiled compression springs separating opposed parallel surfaces, wherein the surfaces are covered by a webbing made of a nonwoven polypropylene, and wherein the outer periphery of the webbing has horizontally disposed rigid foam planks wrapped and held in place by the webbing. The foam planks are formed from polyethylene foam. Additionally, vertically disposed rigid polyethylene foam planks with cross members are situated within the innerspring unit between the compressions springs at the periphery of the innerspring unit. The foam planks with cross members provide the support needed to achieve the anti-roll off feature. In an alternative embodiment, rigid polyethylene foam cylinders are placed within the rows of compression springs at the periphery of the innerspring unit to provide support at those locations.

Abstract: A bedding or seating product comprising a centrally located spring core, edge support means located around the perimeter of the spring core, filling material located above and below the spring core and an upholstered covering. The edge support may be either a string of springs, a pair of spiral edge supports or plastic edge reinforcements. The edge support means extends above and below the upper and lower surfaces of the spring core thus creating a higher peripheral edge than the central portion of the spring core. Layers of filling material are inserted over the central portion of the spring core in order to create a uniform upper and lower surface.