Sleep soundly with the Relax King Size Pillow. Cushioned with an abundance of shredded memory foam, Relax features a non-removable pillow case made of a cooling blend of 60% polyester and 40% rayon derived from bamboo. Friendly to those with allergies and dust sensitivities, Relax comes with a one year spring back warranty that guarantees against flattening. Shredded memory foam pillow Ease neck and back pain Naturally hypoallergenic 40% bamboo / 60% polyester cover 1 year spring back warranty Vacuum packed and sealed in box See our full collection of Bed Pillows to choose the best option for your home.