Have a more peaceful sleep with the Sarah Peyton Memory Foam Cool Sensations Mattress featuring a patented ventilation system with unparalled breathability. Its open, memory foam cell structure allows cool air to displace warm air allowing you to wake up feeling refreshed and rejuvenated. Topped with a 2.5 inch, this thick, 4lb, "Cool Wave" Memory Foam top layer circulates air using unique air flow ducts. The 3" core foam support structure contains air flow channels that directs cool air throughout the mattress allowing you to sleep better and more comfortably. The 4.5" high- density supportive base foam helps mold your body and eliminates the uncomfortable pressure-points and motion transfer common in most innerspring mattresses. The Sarah Peyton sleep system is produced using a system which eliminates impurities and is the most environmentally-friendly foaming process available. Mattress never needs turning and can be used with any existing box springs or platform bed. The thick, 10-inch Memory Foam Mattress is composed of a 4-lb density, which allows for a more supportive sleep, alleviating muscle and joint pains. Overlaid with a non-flammable fabric, the Sarah Peyton Memory Foam Mattress meets all flammability requirements. The aloe-vera treated cover is easily removable, and is machine washable and dryable.Due to the vacuum seal, there may be a slight odor upon opening. Usually, allowing the mattress to air out in a ventilated area will remove the odor. Please allow up to 48 hours for the Memory Foam to fully expand within a unconfined area. Due to the nature of Memory Foam, the firmness level of every item is unique. Please be advised that even similar products may produce different firmness results. Full-size mattress measures 75 inches long x 54 inches wide x 10 inches high.