Abstract: A mattress includes a base layer having a first surface and a second surface arranged opposite to the first surface. The base layer defines a plurality of slots extending from the first surface to the second surface and arranged in a plurality of rows in a staggered arrangement. The mattress also includes a plurality of hoop assemblies arranged inside the plurality of the slots. Each hoop assembly includes a hoop arranged vertically inside the slot and a central axis of the hoop extends substantially horizontally and parallel to the first surface. The hoop is configured to compress under a load.

Abstract: A mattress includes a flex structure having at least one support layer and a plurality of marbles engaged with the at least one support layer and supported by the at least one support layer. The plurality of marbles is arranged in a grid pattern along the at least one support layer.

Abstract: A mattress includes a layer including a first surface and a second surface arranged opposite to the first surface. The layer defines a plurality of slits extending from the first surface to the second surface and arranged in a plurality of rows extending in a longitudinal direction. The slits in each row are arrayed linearly in the longitudinal direction and are disposed spaced apart from each other. The rows of the slits restrict a compression of the layer to an area under loading and prevent the surrounding portion of the layer from being pulled towards the area under loading.