A mattress in a box is a mattress that’s compressed in an air-sealed bag and rolled tight so that it can fit into a box that’s easier to maneuver than a traditional mattress. Allowing you the flexibility and convenience of picking your mattress online and having it easily delivered to your door.

When you receive the mattress, all you’ll need to do is pull it out of its packaging, lay it flat on your bed frame or floor, and let it expand.

Foam and hybrid mattresses can be slept on almost right away but may take up to 48 hours to expand fully. Our Snow mattresses are primarily made with memory foam and can take up to 72 hours to expand fully.

Casper mattresses are designed to support you no matter what position you sleep in! Our Zoned Support™ Technology works to offer support to the areas that need it most, with varying zones of softness and firmness at the right body touch points to keep your spine aligned. Whether you consider yourself to be a side, stomach, or back sleeper, we've got you covered.

Casper mattresses are designed to work on a firm, solid surface like our foundation, platform, or adjustable bed frame. Having the correct support ensures the performance and longevity of memory foam/hybrid mattresses.

For slatted frames, we recommend using bed slats that are flat (not bowed), wooden, and no more than 4 inches apart.

As our Casper mattresses are not considered medical devices, we always recommend consulting with your medical professional regarding your specific needs. Every medical condition is unique in nature, but we’ve had many Casper mattress customers report relief in back pain! The orthopedic mattress design of the Dream Max and Snow Max have also earned endorsements from the American Chiropractic Association.

Zone Support™ is engineered to keep your spine in ergonomic alignment by providing support where your body needs it most, with firmer foam under the hips, waist, and lower back. Zoned Support Max™ combines our firmer center foam with a second layer of precisely cut channels to cradle the natural curve of your body while adding support to your hips, waist, and lower back for the ultimate ergonomic relief with our hybrid memory foam design.

From Casper Labs, our most advanced solution to nighttime overheating combines HeatDelete™ Bands, Phase Change Material, and a cooling Snow Cover to keep you comfortably cool from the moment you crawl into bed.