Casper - Wave Hybrid Mattress, California King - Gray

This king mattress combines the traditional support of innerspring and the plush comfort of memory foam, with dual foam layers balancing softness and support to cushion pressure points and ease back/neck discomfort. Our full mattress holds CertiPUR-US and OEKO-TEX certifications, using materials free from harmful substances like heavy metals for safety and no unpleasant odors. Equipped with multi-layer breathable foam, it boosts air circulation to dissipate sweat and moisture, creating a cool, dry sleep environment. Delivered as a 12-inch model compressed, vacuum-sealed, and rolled into a box for convenience, our 12 inch memory foam king mattress fits various bed frames (box springs, floors, slatted bases, etc.), regains shape quickly upon unpacking and fully expands within 72 hours for use.

The Renanim California King Mattress is a premium 12 inch memory foam mattress designed to transform your sleep with cooling comfort and superior support. Crafted with gel infused memory foam, it regulates temperature and dissipates heat, making it the perfect cooling mattress for hot sleepers. The breathable construction enhances airflow throughout the night, preventing overheating and ensuring consistent comfort. With its supportive yet pressure relieving design, this California King mattress contours to your body’s natural curves, alleviating stress on joints and promoting healthier sleep posture. Its spacious California King size is ideal for couples, offering enough room for undisturbed rest and seamless compatibility with adjustable bed frames. Delivered conveniently as a bed in a box, setup is quick and hassle free. Whether you prefer a California King mattress for reliable support or a soft cooler feel for plush comfort, this memory foam mattress is designed to balance both. Engineered with durable materials, it maintains structure without sagging over time, providing long lasting comfort. Perfect for upgrading any bedroom, the Renanim California King memory foam mattress combines cooling technology, ergonomic support, and luxury comfort in one mattress solution.

Elevate your sleep with the GhostBed Premium Foam mattress, featuring a cooling Ghost Ice cover and a copper- and gel-infused comfort layer. This medium-plush mattress cradles your body while the innovative ProCore Elite™ layer aligns your spine so that you wake up refreshed and pain-free. Experience what premium sleep feels like with 5x cooling power and 5 comfort-enhancing layers.