Perfect Sleeper Cobalt Calm 15" Plush Pillow Top Mattress Set, Twin XL

4.6 (1,150)
Clearance
$1,077.30 (59% off) with code: HOME Sale $1,197.00$2,639.00
Size:Twin XL

Type: Set with Standard Profile Box Spring

Tiles
Have a question? Talk with our furniture & mattress experts at 1-800-366-6229.
Offers & perks
Free Box Spring
See offer details
60/mo.* suggested payments for 18-months totaling $1,077.30 with Macy's Card.

Product details

Web ID: 21339588
Featuring a three-zoned coil design, the Serta Perfect Sleeper Cobalt Calm mattress offers pressure relief and support where you need it, with Cool Twist® Gel Memory Foam that contours to your body—with upgrades available for even more cooling and comfort.

  • Product Features

    • Mattress top: pillow top
    • Mattress type: innerspring
    • Breathable, gel-infused Cool Twist® memory foam gently cradles your body while promoting enhanced airflow.
    • A luxurious, breathable CoolFeel™ fabric cover with a cool-to-the-touch sensation
    • 850 Edition Custom 3 zoned support Coil System of individually wrapped coils provides contouring, cradling support from edge-to-edge, minimizing the impact of your partner's movements
    • Box spring available in 9" standard and 5" low-profile heights
    • The Serta Perfect Sleeper Foundation, constructed of wood and metal, provides the perfect support for your Serta mattress and is designed to provide durability and long-lasting comfort
    • Coil count: 539
    • Compatible with an adjustable bed
    • Meets federal fire-safety standards
    • Warranty: 10-year non-prorated warranty
    • Made in the USA of imported and domestic parts
    • Woman Owned
    • Certified flexible polyurethane foams meet CertiPUR-US® program standards for content, emissions and durability, and are analyzed by independent, accredited testing laboratories
    • Request warranty information

  • Shipping & Returns

    • Shipping Method: Scheduled Delivery
    • For complete details, see our Shipping and Returns policies.

Ratings & Reviews

Here's what customers think
  • The mattress is widely praised for its exceptional comfort and support.
  • Customers describe it as "comfy", "very comfortable", and "supportive", providing a great night's sleep.
  • The balanced feel is noted as "firm yet soft" and "plush yet supportive".
  • Several reviewers mentioned the mattress has helped alleviate back and joint pain.
AI-generated summary from 1,143 customers reviews.
4.6/5

1,150 star ratings, 1,143 reviews

Write a Review
78.7% of reviews have 5 stars
905
11.5% of reviews have 4 stars
132
5.0% of reviews have 3 stars
57
2.0% of reviews have 2 stars
23
2.9% of reviews have 1 star
33

232 customer images

1,143 reviews
Prestine M
4 days ago

Comfortable mattress

Comfy supportive mattress

Customer review from Serta

April R
4 days ago

Would buy again

Comfortable supportive

Customer review from Serta

Laura E
6 days ago

New mattress

Very comfortable and good support

Customer review from Serta

Andrea H
6 days ago

Perfectly Dreamy!

Great mattress! So comfortable with the support I need for a good nights rest.

Customer review from Serta

Cindy N
6 days ago

Mattress review

Purchased December 27,3025 and delivered 1/8/26. It is beginning to sink down in area beneath buttocks area. I weigh 169and husband weighs 254 and only had it for three weeks. Other than that it’s comfortable. Concerned if will continue to sink further.

Customer review from Serta

Beverly R
6 days ago

Best nights sleep ever!

Best nights sleep ever!

Customer review from Serta

Diane J
8 days ago

Comfy

Comfy and supportive mattress

Customer review from Serta

Serta Perfect Sleeper Cobalt Calm 15" Plush Pillow Top Mattress Set, California King This review is from Serta Perfect Sleeper Cobalt Calm 15" Plush Pillow Top Mattress Set, California King
Daniel B
9 days ago

Great sleep

Soft yet supportive.

Customer review from Serta