Keep in mind that these prices are good today only, as it is part of the Gold Box Deal of the Day. And it will expire at midnight PST tonight. You’ll find the Casper Mattress Twin for $335.73 and Twin XL for $378. If you need something a bit larger, the Full is listed at $463.25 and Queen at $505.75. While the King mattress is $675.75, and the California King is the same $675.75. These are actually some of the lowest prices we have ever seen for Casper Mattress. Dreamy comfort at an unbeatable price. Casper is reimagining sleep from the ground up. All of Casper’s sleep products are developed in-house by our award-winning research and development team.The Element is the perfect introduction to Casper quality at a comfortable price. The Element has two layers of premium foam creating a balance of softness and support. A top layer of AirScape perforated foam helps keep you cool at night by promoting breathability. It has a touch of softness and bounce, while underlying memory foam supports pressure points and cradles curves.The durable base foam prevents sinking and sagging and supports the whole body. The eco-friendly cover is made with recycled materials and easily zips off. It’s designed to withstand years of use. The knit mattress covers have four way stretch, so you feel the full benefits of the below layers.Still unsure Rest easy with our 100-night trial and free returns. Casper Mattress is actually very comfortable to sleep on. I’ve been sleeping on one for almost a year now, and have never had better sleep than I have since buying this mattress. So it’s worth buying.