We designed every Casper mattress to be versatile, so it can work with all standard foundations. As with all foam beds, you want as much direct support under the mattress as possible. A wooden slatted or platform bed offers the most support. For optimal support under all sizes (twin, twin XL, full, queen, king, Cal king), we suggest using the Casper foundation.

Beyond personal preference, there are various factors to take into account before picking a mattress size that’s perfect for you. You should ask yourself: How big is your bedroom? Do you share the bed with a partner or pets? Is living space or sleeping space more important to you? We’ve laid out all these details in our handy mattress size guide.

The Casper Wave's proprietary technology is designed to help relieve pressure points associated with hip and shoulder pain. The Wave’s firmness is targeted to provide ergonomic support, comfort, and spine alignment. While we have a team full of designers and engineers, we aren't medical doctors. Pain can stem from a variety of causes, so be sure to confirm any medical issues with your doctor.

With over 30,000 reviews on Google Customer Reviews and 12,000+ mattress reviews on our site, we’re confident in our product. We have a continuous flow of customer feedback and data that our San Francisco R&D team uses to improve the Casper. The team shares more than 50 patents, and their work on the Casper has earned tens of thousands of 5-star reviews.