Modway Aveline 6" Gel Infused Memory Foam Twin Mattress With CertiPUR-US Certified Foam - 10-Year Warranty - Available In Multiple Sizes BEST REVIEWED MATTRESS - Purchase the top rated firm twin mattress at the lowest price. Aveline delivers high quality memory foam comfort and support at a price you can afford. SLEEP SOUNDLY - Reduce pressure on your head, neck and spine with an open cell memory foam queen mattress. Aveline helps align your spine and reduce pressure on your hips, lower back and shoulders. INDEPENDENTLY TESTED - The foam inside is CertiPUR-US certified so you can be sure its made without formaldehyde, heavy metals, PBDEs, TDCPP or TCEP (Tris) flame retardants, and is low on VOC. CUSTOMER SATISFACTION - Over 98% of Aveline customers are satisfied with their purchase and buy more as the need arises. Back that up with our 10-year warranty, and you can rest easy knowing you are purchasing a quality mattress at an exceptional price. COOLING MATTRESS - Aveline comes with gel-infused memory foam top layer that is open cell and ventilated. Sleep comfortably while reducing sweat and perspiration during hot or humid weather.1.5 inches gel infused foam Mattress type-Gel memory foam, foam. 4.5 Inches dense polyurethane foam base. Width of the mattress is 39 inches