The Earlybird Coppercool Performance 10" Firm Memory Foam Twin Extra Long Mattress delivers firm, performance-focused support with cooling comfort for a restorative night's sleep. Layered memory foam provides pressure relief while a polyurethane support core keeps the surface stable and responsive. A cooling cover helps wick heat and the mattress ships compressed in a box for easy setup; it is made in the USA and backed by a 10-year warranty. Its firm profile is well suited to back sleepers and growing teens who need dependable support night after night.