The Serta Perfect Sleeper Cobalt Calm Extra Firm is a celebrated mattress from a trusted brand focused on what matters most: consistent, restful sleep for every type of sleeper, whether you sleep on your back, your side, or snuggled up to someone else.  With zoned support, contouring memory foam, and a cooling cover for a comfortable sleep all night long, this mattress is your perfect sleep solution every night.

Key Features of the Serta Perfect Sleeper Cobalt Calm Extra Firm Mattress:

• 3 Zoned Coil Design – This 850-coil density system offers three support zones with targeted support for your lower back and hips and cradled comfort everywhere else.

• Serta Support Foam – This type of foam is ideal for sleepers who prefer a firmer sleeping surface and is designed to prevent any sagging or sinking in the mattress.
• Cool Twist Gel Memory Foam – This unique design features cooling gel swirled into premium memory foam. This breathable memory foam helps enhance airflow and heat dissipation for a feeling that can only be described as a cool, contouring type of comfort.

• Anti-Microbial Technology – Our anti-microbial mattress technology will keep your mattress fresh and clean from odor-causing bacteria.

• CertiPUR-US Certified – Means our foam was tested for and is free from harmful chemicals and gasses.

• 10-Year Limited Warranty – The best warranty in the business.
• Compatible – With most frames, including: traditional frames, box springs, platform frames, slatted frames, bunky boards, and adjustable bases.