Product details:

The SLEEPINC. Memory Foam Bed in Box Mattress is a medium firm comfort that is ideal for side and back sleepers. The high density support base foam layer is durable, long lasting and resistant to body impressions, and features cooling gel visco memory foam. The CertiPUR-US certified polyurethane foam is made without harmful chemicals or heavy metals and contains low VOCs and no formaldehyde. The SLEEPINC. mattress is compatible with an adjustable base frame (sold separately). SLEEPINC. memory foam mattresses come in Twin, Twin XL, Full, Queen, King and California King to complement any body size or type. Your mattress may take a little time (24-48 hours) to grow to its optimum size after coming out of the box. Benefits of waiting a full 24-48 hours include expansion & ventilation. Sleeping on the mattress before the 48 hours will not impact the quality or comfort of your new mattress.