HYBRID MATTRESS: For supportive, dreamy sleeping. This mattress brings it home with layers of padding atop individually power packed innerspring coils with 2 perimeter rows for a better night's rest 12" PROFILE: Mattress is designed with gel memory foam, upholstery grade comfort support foam, and 360 individual power packed wrapped coils for maximum lumbar support. Quilt foam gives you that soft, cozy comfort you crave QUICK EXPANSION: Mattress is safe to sleep on immediately but can take 72+ hours for any residual odors from packaging to dissipate and for mattress to completely expand based on ambient room temperature, humidity, air pressure & ventilation. FULL SIZE: Measures 53" W x 74.5" D x 12" H and is compatible with most queen bed frames. Bed foundation, box spring and frame available, sold separately ARRIVES IN A BOX: Simply unbox, cut the protective wrap, unroll and watch the mattress expand. Please allow 48 hours for your mattress to fully expand. State recycling fee may apply WARRANTY: 10 year limited warranty CERTIFIED SAFE MATERIALS: Snooze safely and soundly on a mattress crafted from CertiPUR-US certified materials. Foam has been tested to meet CertiPUR-US rigorous standards for emissions, content and durability