Serta Renewed Relief Mattress

Ultra-plush is the softest firmness level available. This mattress is designed to have a deep, sinking-in sensation that cradles your body, making it an ideal choice for side sleepers who need extra cushioning for their shoulders and hips.

The hybrid design combines the contouring, pressure-relieving benefits of memory foam with the responsive support of a coil system. This gives you the 'hug' of foam without the feeling of being stuck, as the coils provide a bit of pushback and airflow.

This mattress features HexCloud Gel Memory Foam, which is specifically engineered to help dissipate heat. While memory foam naturally retains more heat than an innerspring mattress, the gel infusion and the airflow provided by the coil base help keep the surface temperature more neutral.

Because this is a hybrid mattress, it performs best on a solid, flat surface. You can use it with a platform bed, an adjustable base, or a traditional box spring, provided the foundation is sturdy and offers consistent support across the entire surface.

Since it arrives compressed in a carton, it will begin to expand immediately upon opening. While you can typically sleep on it the same night, it may take up to 48 hours for the foams to fully recover their shape and for the mattress to reach its intended firmness.