GENERAL NOTE: Please allow 24 - 72 hours for your mattress to regain its full shape, any memory foam will expand faster in a warmer room; the expansion time of the mattress will vary as per the surroundingFIRM FEEL: This Lucid mattress includes 1 inch of ventilated gel memory foam and 4 inches of bamboo charcoal infused support foam for a firm feel ideal for stomach and back sleepersMEMORY FOAM: Layers of responsive memory foam provides a soft support, containing more comfort than a traditional innerspring mattress; memory foam layers also contains ventilation holes for easy air transfer for your bed.Top:100% PolyesterGEL INFUSION: Top layer of the mattress contains ventilated memory foam infused with cooling gel, capturing and dissipating heat to help regulate body temperature for a more comfortable sleep climatePLACE IN ANY ROOM: This mattress is perfect for any occasion; great for stomach, and back sleepers, this memory foam mattress fits well in an RV or bunk bed and works well with any slatted bed frame, platform bed, or adjustable baseMATTRESS IN A BOX: Good sleep can’t wait. This is why we’ve designed all our Lucid mattresses to be compressed, rolled, and shipped in one box for easy delivery and setup; simply unbox, unroll, and wait 24-72 hours for the mattress to expand