Utilizing the latest innovations in sleep comfort, the Therapedic Chesire delivers a restorative night's rest. At the mattress surface, a layer of copper infused gel foam helps to dissipate excess heat for a cool, refreshing feel. Underneath, additional layers of Performance and Comfort Foams conform to the body's unique shape, delivering pressure point relief and cushioned comfort. The TheraWrap encased coil innerspring unit allows each coil to flex independently, delivering support precisely where it's needed while reducing motion transfer between sleep partners. The TheraFoam Encased Edge Support system enables you to enjoy the same level of comfort and support to the mattress edges. 10 Year Non-prorated Warranty.Due to a national foam shortage, densified fiber may be substituted for quilt and base foams.