Experience unparalleled comfort and support with the Cobalt Calm Collection featuring 5 different comfort levels. The Serta® Support Foams, providing gentle cushioning and extra firmness for superior support. The Cool Twist® Gel Memory Foam enhances airflow and heat dissipation with its unique design of cooling gel swirled into premium memory foam, resulting in a cool, contouring sleep experience. 
 
Support
3-Zoned Coil System
This 850-coil density system offers three support-zones with targeted support for your lower back and hios and cradled comfort everywhere else.
 
Comfort Levels: 
Colbalt Calm Extra Firm- This mattress is  firm, very firm. If you need a very flat mattress, where the average person does not sink into, this may be ideal for you. Ideal for back sleepers who need to keep their spine straignt. 
Colbalt Calm Plush- Featuring an Having the support of 850-coils with the 3 zones of comfort and a plush top makes this mattress a great choice for back or side sleepers. Even support given, but the top plush layers give comfort for pressure points.  
Colbalt Calm Firm Pillow Top- If you are need of extra support and softness, then maybe this firm pillow top will be the perfect choice for you. The pillow top gives you comfort to lay within, but by using a stronger guage coil, the insides of this mattress stay supportive.
Colbalt Calm Medium Pillow Top- This mattress is a degree softer than the Firm Pillow top, by using and layer differnt types of foams, this mattress stays supportive, but also gives more softness to any pressure points that will be cradled by the pillow top. This mattress a great choice for back or side sleepers.
Colbalt Calm Plush Pillow Top- This mattress is the softest in the collection.  A plush pillow top is an ideal mattress for side sleepers allowing their shoulders and hips to sink into the top pillow, keeping your spine straight within the 3 zoned support system below. 
  
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
850-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
MADE IN MICHIGAN
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.