So comfortable, you'll forget it's there. We combine pressure-relieving memory foam and a springy, breathable top layer to create a sleep surface that leaves you feeling perfectly supported and practically weightless. Between the open-cell top layer, supple memory foam, transition foam, and zoned foundation layer, the mattress optimizes both comfort and support, while ensuring healthy spinal alignment. Our open-cell top layer is inherently more breathable than memory foam, because it has more bounce and doesn't conform to your body. Air can circulate freely and makes sure you sleep cool through the night. Casper is loved by nearly a million happy sleepers. Since our launch in 2014, we've been named of Fast Company's most innovative companies in 2017 and recognized by The Telegraph, Which? Magazine, The Good Housekeeping Institute, and more. Every mattress purchase comes with a 100 night risk-free trial, free shipping, and excellent customer service.