At a Glance
Hybrid
Cooling Technology
Box Spring Included

Ask Mylow

Mylow is an AI virtual assistant.

More Information

Can I use this with an adjustable base?What is the warranty coverage?How does the cooling feature work?Does this provide lower back support?What tools are needed for installation?

Serta Perfect Sleeper Radiant Rest 15-in Firm King Cooling Hybrid Memory Foam/Coil Blend Mattress with Boxspring Included

Name: Serta Perfect Sleeper Radiant Rest 15-in Firm King Cooling Hybrid Memory Foam/Coil Blend Mattress with Boxspring Included
Brand: Serta
SKU: 5014553607
Price: 1849 USD
Availability: InStock
Rating: 4.8 (148 reviews)

Shop Serta

4.8

148

Stepper number input field with increment and decrement buttons

Mattress Thickness

Low Profile

Standard

High Profile

Mattress Firmness

Plush

Medium

Firm

Extra Firm

Pickup

Unavailable

Shipping

Mon, Aug 24 (Est.)

5,000+ available

Delivery

Unavailable

Check Fee in Cart.

Outside Delivery.

Members save more.

Serta will deliver, set up and haul away your old mattress, so you can get a good night’s sleep.

Best Price. Guaranteed

Find a lower price on an exact item? We'll match it. Some exclusions apply.

Price Guarantee

FREE Returns

Return it in store or ship it back for free. Eligibility rules apply.

Return Policy

Pay Your Way

Credit card, PayPal or Buy Now, Pay Later options available at checkout. Your choice.

Payment Options

Featuring a 3 zoned coil design, this mattress offers pressure relief and support where you need it, with a Cool Twist® Gel Memory Foam that contours to your body—with upgrades available with more cooling layers and support. Your new mattress may initially feel firmer than expected. Please allow up to 60 days to acclimate to your new mattress as it naturally adjusts to contour, comfort, and support you best. Premium memory foam is temperature-sensitive; it may feel firmer in cooler temperatures and softer in warmer ones. For your preferred comfort, please allow several hours for your memory foam mattress to adjust to the room’s temperature.

Cool Twist® Gel Foam - Cooling gel is swirled directly into a breathable foam designed to promote airflow and heat dissipation
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
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
Designed and Built in USA
Adjustable Friendly
You should be able to rely on the quality of your rest night after night - that is why we offer a 10-year limited warranty that covers manufacturing and workmanship defects

General
Color/Finish Family	Blue	Fabric Material	Polyester
Type	Hybrid	Collection Name	Perfect Sleeper Radiant Rest

Dimensions
Length (Inches)	79.5	Thickness (Inches)	15
Size	King	Width (Inches)	76
Weight (lbs.)	166.61

Features
Boxspring Included	Yes	Comfort Level	Firm
Hypoallergenic	No	Mattress in a Box	No
Coil Count	868	Cooling	Yes
Coil Gauge	15

Warranty
Warranty	10-year limited

Certifications
CA Residents: Prop 65 Warning(s)	No

Compatibility
For Use with Adjustable Base	Yes

Miscellaneous
UNSPSC	56101500

Check out the Best Selling Mattresses on Lowes.com

Review

4.8 out of 5

148 Reviews

2 Star

100% Recommend this product

Ratings may include incentivized customer reviews.

Read All Reviews

+ 19

What Customers Are Saying

The mattress provides excellent comfort and support, with a perfect balance of firmness and softness that contours to the body. The hybrid design combining memory foam and coils offers great pressure relief and minimizes motion transfer, allowing for restful sleep. Customers with back, neck, and joint pain report significant improvements and reduced discomfort. The cooling gel layer helps regulate temperature for a comfortable sleep. Overall, the mattress is highly recommended as a high-quality, durable option that delivers exceptional comfort and support.

Customer review summary generated by AI, including incentivized reviews.

148 Customer Reviews

Sort By

Firm

Good condition and firm

Jasmien AMarch 29, 2026

From Serta

New mattress

Very comfortable

Betsy KMarch 28, 2026

From Serta

Hybrid Firm Matress

The mattress itself is amazing! But unfortunately our mattress came with part of the stitching unraveled ?

Nancy ANovember 7, 2025

From Serta

very good sleep

A very comfortable mattress. I'm a side sleeper and I get good support from this mattress.

Jim BMay 5, 2025

From Serta

Best mattress ever

Love my new mattress, it’s so comfortable, more then what I was expecting and helps with my back pain and my spine issues I have!!!

Tifanie PApril 19, 2025

From Serta

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86c2VydGE/057f3ac0-33a3-587c-9395-4b4a849d4cb3

Love my king size

Love the hybrid mattress and the quality of Serta

Yvonne LMarch 24, 2025

From Serta

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86c2VydGE/5a30e12e-5de7-5303-b6e7-ec5078146683

Great

Didn’t think that I was going to like the firm hybrid. I was completely wrong. We love this bed and would get another one.

Steve SMarch 12, 2025

From Serta

My Serta 👀

I hope too enjoy it !!

Lois JJanuary 28, 2025

From Serta

Comfortable and great

Comfy and great

Esperanza HJanuary 3, 2025

From Serta

Adjustable bed

Would like a little softer

Tracey BDecember 28, 2024

From Serta

Serta Perfect Sleeper Radiant Rest 15-in Firm King Cooling Hybrid Memory Foam/Coil Blend Mattress with Boxspring Included