The CoolNest Ultra memory foam mattress is designed for hot sleepers, couples, and anyone who wants a cooler, more restful night. As the premium upgrade from the best-selling CoolNest series, this mattress features an enhanced four-stage cooling system with an instant-cool Ice Silk cover, temperature-balancing PCMflux foam, and breathable AirMesh foam to help prevent overheating throughout the night. The refined 7-zone support layer follows your body's natural curves to relieve pressure and promote proper spinal alignment, making it ideal for back, side, and combination sleepers. Multiple adaptive foam layers absorb movement to reduce disturbances from partner shifts, helping couples sleep more soundly. Made with CertiPUR-US certified foam and an OEKO-TEX certified cover, this mattress is fiberglass-free and ships compressed in a box for easy setup.
This 12” mattress was simple to unwrap and install, but is heavy on arrival. It has been open a few hours and I am hoping it will expand more over the next day. Direction’s say 72 hours for full expansion. As you see there is a lot of slack and wrinkles in the covering. The comfort is soft yet firm to the touch and has a cooling feel to the skin . I do think 14” or thicker would have been better. This is for a guest room that is not used often, so hopefully this will be sufficient and the wrinkling disappears.. Stephany. Crosslanes, WV. Thu, 05 Nov 2026