Perfect Sleeper Cobalt Calm Innerspring Mattress - Extra Firm

Featuring an 825-coil density system, this classic quilted-top mattress offers zoned comfort, pressure relief, and memory foams that contour your body—plus upgrades available with more cooling layers and support.

An extra-firm, supportive mattress with a 12” profile, essential cooling features, and targeted support.

Materials & Construction

• Our celebrated mattress, the Serta Perfect Sleeper, is new and improved with a focus on what matters most: consistent, restful sleep for every type of sleeper—back, side, stomach, or snuggled up to someone else. With zoned support, contouring memory foams, and a cooling cover for comfortable sleep all night long, this mattress is your perfect sleep solution every night.
• PillowSoft® Aire Foam provides enhanced cushioning for exceptional comfort and promotes airflow through its unique, gently rippling design
• Gel foam lumbar support band provides support for the lower back and hips
• 825-coil density system provides contouring, cradling support that minimizes motion transfer, plus an extra-deep foam rail helps reduce edge roll-off and extends the sleep surface
• 100% USA Assembled

Responsibly crafted

• CertiPUR-US® Certified means our foam was tested for and is free from harmful chemicals and gasses

Care

• To protect your mattress from stains and spills, we highly recommend using a mattress protector; This will also help with the overall health and lifespan of your mattress.
• We do not recommend applying liquids to the product; Applying liquids may stain the fabric and make the soiled area worse; Moisture or chemicals applied directly to the mattress can cause premature breakdown of the foam and damage the product.
• We suggest applying baking soda to the soiled area, let stand about 15 minutes, vacuum, and repeat as needed; Air the product out as much as possible.

Compatibility

• Compatible with most frames, including: traditional frames, box springs, platform frames, slatted frames, bunky boards, and adjustable frames.

Feel

Extra Firm

Support

3 zones of cushioning, cradling support with an 850-coil density system

Pressure Relief

Contouring memory foams help relieve aches and pains

Cooling

Topped with a cool-to-the-touch cover made with CoolFeel™️ fabric

Motion Control

Designed to minimize the impact of your partner's movement

Made for

Best for stomach and back sleepers