Indulge in deeper, more restorative sleep with the Aveline 10" Twin Mattress. Topped with breathable gel-infused memory foam to keep your body climate steady and cool, this mattress dissipates body heat with abundant ventilation while quickly conforming to your weight and position for ultimate comfort. Sleep peacefully with an open-cell memory foam mattress that relieves pressure points and delivers welcome relief from the aches and pains of traditional mattresses. This mattress is made without fiberglass. The memory foam inside is CertiPUR-US certified foam, made without formaldehyde, ozone depleters, mercury, lead or other heavy metals, and phthalates regulated by the U.S. Consumer Product Safety Commission. Certified foams are also screened for relevant chemicals, including flame retardants, that are classified as carcinogens, mutagens or reproductive toxins and are harmful to human health, and have low VOC (volatile organic compound) emissions for indoor air quality (less than 0.5 parts per million). Foam samples are taken at the manufacturing stage and are analyzed by independent, accredited laboratories. The mattress ships directly to your doorstep. It takes 2 to 4 hours for the mattress to expand most of the way and a day to expand fully. Includes a removable stretch knit diamond patterned cover. Box spring or foundation is optional. Slatted bases should be less than 3" apart. Size: medium.