Mattress in a Box: Mattresses in a box offer convenience and high-quality sleep. Adjustable base friendly: Elevating the top and/or bottom of your mattress provides targeted support to help reduce snoring, provide pain relief and make reading and watching TV more comfortable. Pressure Relief: Using pressure relief can alleviate aches, stiffness, pain, and sleep apnea by keep pressure on the mattress consistent across the entire bed.