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Cooling King Size Mattresses

Experience restful nights and refreshing comfort with cooling king size mattresses designed to help you enjoy a more comfortable sleep environment. Perfect for spacious bedrooms, these mattresses offer ample room while prioritizing a cooler sleep surface for uninterrupted rest. Explore a range of cooling king size mattresses at Costco and discover options that combine generous sizing with innovative materials, making it easy to find the perfect fit for your bedroom and your lifestyle.

Novaform 14” ComfortGrande Advanced Gel Memory Foam Mattress
Novaform 14” ComfortGrande Advanced Gel Memory Foam Mattress
Rated 4.5 out of 5 stars based on 17160 reviews.
(17160)
Beautyrest 14.5" Silver Hybrid DualCool Plush Mattress
Beautyrest 14.5" Silver Hybrid DualCool Plush Mattress
Rated 4.1 out of 5 stars based on 3959 reviews.
(3959)
Tempur-Pedic Supreme 11.5” Medium or Firm Mattress Only
Tempur-Pedic Supreme 11.5” Medium or Firm Mattress Only
Rated 4.5 out of 5 stars based on 1856 reviews.
(1856)
GhostBed Hybrid 12" Medium-Plush Cooling Mattress
GhostBed Hybrid 12" Medium-Plush Cooling Mattress
Rated 3.7 out of 5 stars based on 303 reviews.
(303)
Leesa Legend 12" Hybrid Mattress Medium Plush
Leesa Legend 12" Hybrid Mattress Medium Plush
Rated 4.3 out of 5 stars based on 1508 reviews.
(1508)
PurpleRenew 11" Gel Grid Mattress
PurpleRenew 11" Gel Grid Mattress
Rated 4.3 out of 5 stars based on 818 reviews.
(818)
Beautyrest 12" BR800 Medium Mattress
Beautyrest 12" BR800 Medium Mattress
Rated 4.2 out of 5 stars based on 1731 reviews.
(1731)
Beautyrest 12" Silver BRS900 Medium-Firm Mattress
Beautyrest 12" Silver BRS900 Medium-Firm Mattress
Rated 4.2 out of 5 stars based on 7872 reviews.
(7872)
Comfort Tech 10" Serene Foam II Mattress
Comfort Tech 10" Serene Foam II Mattress
Rated 4.4 out of 5 stars based on 4986 reviews.
(4986)
Brentwood Home Tahoe 10" Cooling Gel Hybrid Mattress
Brentwood Home Tahoe 10" Cooling Gel Hybrid Mattress
Rated 4.3 out of 5 stars based on 1829 reviews.
(1829)
Sleep Science 14" Copper Infused Firm Memory Foam Mattress
Sleep Science 14" Copper Infused Firm Memory Foam Mattress
Rated 4.3 out of 5 stars based on 2392 reviews.
(2392)
Avocado Organic 11" Hybrid Mattress
Avocado Organic 11" Hybrid Mattress
Rated 4.0 out of 5 stars based on 372 reviews.
(372)
Novaform 14" Serafina PerfectTemp Gel Memory Foam Mattress
Novaform 14" Serafina PerfectTemp Gel Memory Foam Mattress
Rated 4.3 out of 5 stars based on 9347 reviews.
(9347)
Sleep Science 13" Bamboo Cool Firm Mattress
Sleep Science 13" Bamboo Cool Firm Mattress
Rated 4.4 out of 5 stars based on 1819 reviews.
(1819)
Sleep Science 13" Bamboo Cool Mattress with Q Plus Adjustable Base
Sleep Science 13" Bamboo Cool Mattress with Q Plus Adjustable Base
Rated 4.3 out of 5 stars based on 769 reviews.
(769)
Beautyrest Black Hybrid LX Class 13.5" Medium Mattress
Beautyrest Black Hybrid LX Class 13.5" Medium Mattress
Rated 4.4 out of 5 stars based on 87 reviews.
(87)
Sealy Posturepedic Carver 11” Firm or 13.5” Plush Mattress
Sealy Posturepedic Carver 11” Firm or 13.5” Plush Mattress
Rated 4.4 out of 5 stars based on 15558 reviews.
(15558)
Sleep Science 14" Copper Infused Firm Memory Foam Mattress with Adjustable Q-Plus Base
Sleep Science 14" Copper Infused Firm Memory Foam Mattress with Adjustable Q-Plus Base
Rated 4.3 out of 5 stars based on 2392 reviews.
(2392)
Tuft & Needle 9.5" Memory Foam Mattress
Tuft & Needle 9.5" Memory Foam Mattress
Rated 4.4 out of 5 stars based on 650 reviews.
(650)

Top Rated Items

Novaform 14” ComfortGrande Advanced Gel Memory Foam Mattress
Sealy Posturepedic Carver 11” Firm or 13.5” Plush Mattress
Kirkland Signature by Stearns & Foster 14.5" Pillow Top Lakeridge Mattress
Beautyrest 12" Silver BRS900 Medium-Firm Mattress

Shop Related Pages

Cooling Mattresses For Night Sweats
Plush King Size Mattresses
Cooling Sheets With Deep Pockets
Cooling Mattress Toppers For Night Sweats