Abstract: Some embodiments of disclosed pillow comprise a first sleeve within which is retained a plurality of loose pieces of filler material, a second sleeve in which the first sleeve is received, and a unitary piece of foam retained between the first and second sleeves. In some embodiments, the unitary piece of foam comprises viscoelastic foam, and can be elongated to run along a side of the first sleeve, can be substantially flat to cover a face of the first sleeve, or can take other shapes and be located in other positions as desired. Also, in some embodiments the unitary piece of foam is shaped to mate with the first sleeve. Additional unitary pieces of foam can be located adjacent the first sleeve and can be retained between the first and second sleeves to provide pillows having other support and cushioning characteristics.

Abstract: Some embodiments of the disclosed pillows have a sleeve of viscoelastic material within which is received and enclosed a plurality of loose pieces of filler material. The sleeve can have one or more openings shaped and dimensioned to provide ventilation for the interior of the pillow and/or to enable a user to insert and remove an inner sleeve within which the filler material is retained. In some embodiments, the inner sleeve has two or more compartments for holding the same or different filler materials having the same or different densities, thereby providing a pillow adapted for different uses and support characteristics.

Abstract: Some embodiments of disclosed pillow comprise a first sleeve within which is retained a plurality of loose pieces of filler material, a second sleeve in which the first sleeve is received, and a unitary piece of foam retained between the first and second sleeves. In some embodiments, the unitary piece of foam comprises viscoelastic foam, and can be elongated to run along a side of the first sleeve, can be substantially flat to cover a face of the first sleeve, or can take other shapes and be located in other positions as desired. Also, in some embodiments the unitary piece of foam is shaped to mate with the first sleeve. Additional unitary pieces of foam can be located adjacent the first sleeve and can be retained between the first and second sleeves to provide pillows having other support and cushioning characteristics.

Abstract: Some embodiments of the disclosed pillows have a sleeve of viscoelastic material within which is received and enclosed a plurality of loose pieces of filler material. The sleeve can have one or more openings shaped and dimensioned to provide ventilation for the interior of the pillow and/or to enable a user to insert and remove an inner sleeve within which the filler material is retained. In some embodiments, the inner sleeve has two or more compartments for holding the same or different filler materials having the same or different densities, thereby providing a pillow adapted for different uses and support characteristics.