Perfect Sleeper® Cobalt Calm Extra Firm Mattress

$1,399.99 – $1,959.99

Choose a size:

King
Queen

Comfort Level

Firm
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Product Information

Description

 

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.
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

1. PillowSoft® Aire

Soft foam provides enhanced cushioning for exceptional comfort and promotes airflow through its unique, gently rippling design

2. Serta® Support Foam

Strikes the ideal balance of cushioning and support

3. Gel Band Support

Gel foam lumbar support band provides support for the lower back and hips

4. 825 Edition Custom Support System

An 825-coil density system that provides contouring, cradling support and minimizes motion transfer

5. Serta® Balanced Support Foam

Strikes the ideal balance of cushioning and support, no matter how firm or plush you prefer your mattress

The Perfect Sleeper® Cobalt Calm Extra Firm Mattress may be available at FurnitureLand in the Delmar, and Millsboro area. Please contact us to check availability.

Please note that the finish or fabric of this product in-store may be different than the photo currently pictured. Please contact your local store to confirm product pricing, availability, finish and fabric colors and promotional dates.

Comfort Level
Firm

Mattress Type
Innerspring

Dimensions & Specs

Item # 987570
Overall Height 12.00"

Find Your Size

Twin Sleeps one child or adult comfortably. 39" wide x 75" long
Twin XL Comfortably sleeps one taller individual. 39" wide x 80" long
Full Snugly fit two adults, or enjoy the extra space. 54" wide x 75" long
Queen Most Popular! Comfortably sleeps two adults. 60" wide x 80" long
King Enjoy more space and not crowd your partner. 76" wide x 80" long
California King Perfect for taller adults sharing a mattress. 72" wide x 84" long
Split Queen A queen-sized bed made of two separate mattresses that allows for personalized feels and adjustability. 60" wide x 80" long
Split King A king-sized bed made of two separate mattresses that allows for personalized feels and adjustability. 76" wide x 80" long
Split California King A California King-sized bed made of two separate mattresses that allows for personalized feels and adjustability. 72" wide x 84" long

Please note that certain sizes may not be available for all mattresses. Contact your local store to confirm product pricing, availability, and promotional dates.

Return Policy

14-Day Enjoy-In-Your-Home Guarantee Enjoy your new furniture in your home for up to 14 days. If it doesn't meet your needs, you can send it back to us for free! 31-Day Low-Price Guarantee If you find the same item in our trading area for less within 31 days of buying it from us, we'll refund 112 percent of the difference. 120-Night Mattress Comfort Guarantee If you buy a mattress for over $999, you can try it in your home for up to 120 nights. If it's not right for you, you can send...Read More

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Perfect Sleeper® Cobalt Calm Extra Firm Mattress
$1,399.99 – $1,959.99

Choose a size:

King
Queen
Add to wishlist

Request More Information

Looking for more information? Simply fill out the form below and we will get back with you within 48 hours.

Please enter your name
Please enter your email
Please enter your phone
Please enter your Zip Code
Please enter your comments
* required
Distribution Center

36344 Sussex Highway
Delmar, DE
110.90 mi

Call Us: (302) 846-3005

FurnitureLand

38529 Sussex Highway
Delmar, DE
111.55 mi

Call Us: (302) 846-0777

Ashley Furniture Delmar

3 Gerald Ct
Delmar, DE
111.68 mi

Call Us: (302) 846-9191

Ashley Furniture Millsboro

26955 Dickerson Rd
Millsboro, DE
123.32 mi

Call Us: (302) 663-9753