Delivered straight to your door and engineered for quality and comfort, a mattress in a box full mattress has it all. Simply unpack your new bed and you'll be sleeping in the lap of luxury before you know it. The specially designed foam offers optimal spinal support, which helps relieve back pain and facilitates a sound night of sleep. With our mattress in a box full mattresses' 100 Night Sleep Guarantee and unmatched comfort, you'll think you're dreaming.