Introducing an affordable boxed bed solution, the Emma Pressure Relief Memory Foam 8 Inch Twin Mattress features a top layer of memory foam, a dense layer of responsive foam and a quilted polyester fabric cover with stitched padding for an extra layer of comfort. The perfect solution for guest bedrooms, kid rooms and more, the Emma memory foam twin mattress easily stores away when not in use and comes compressed, vacuum-packed, rolled and sealed in a small portable box, delivered directly to your doorstep. Foam meets fire resistant st and ards and fully decompresses in about 2 hours during the summer and 72 hours during the winter.