This memory foam bed in a box mattress is designed for quality and comfort. It is ideal for side and back sleepers. The fully supportive design reduces motion transfer while relieving stress on pressure points. It has a layer of cooling gel visco memory foam that delivers all the pressure relieving properties of the foam while providing a cooler sleeping surface. It is made of CertiPUR-US certified polyurethane foam with no harmful chemicals, heavy metals or formaldehyde. This mattress is compatible with an adjustable base frame. The frame is sold separately. This mattress comes with a comfortable stretch knit cover to protect it from stains. The mattress may take some time around 24 to 48 hours to grow to its optimum size after unboxing. It is available is different sizes. It comes with a 10-year limited warranty.