10 Best cal king mattress toppers of 2026

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Best Choice

1

WhatsBedding

WhatsBedding 3 Inch Feather Bed Mattress Topper,Duck Feather Memory Foam Mattress Topper, Thickened Topper Layer,California King
9.7

Exceptional

Our Rating
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Value for Money

2

VALUXE

VALUXE 3 Inch Gel Memory Foam Mattress Topper California King Size High Density Cooling Pad Pressure Relief Bed Topper (with Removable & Washable Bamboo Cover)
9.4

Excellent

Our Rating
3

Milcabe

3 Inch Ultra-Fluffy Memory Foam Mattress Topper Cal King for Back Pain, Extra Soft Pillow Top Cal King Mattress Topper with 4X Support, Mattress Pad with Breathable Air Mesh Sides, 6-21'' Deep Pocket
9.3

Excellent

Our Rating
4

MATBEBY
MATBEBY California King Mattress Pad - Cooling Breathable Mattress Topper, Quilted Fitted Mattress Protector, Pillow Top Mattress Cover with 8-21" Deep Pocket, Soft, Machine Washable, White, Cal King
Main highlights

Key Features
Soft, breathable microfiber top layer with unique 3D+6D filling for a comfortable sleep. Quilted design, deep pocket fit, machine washable.

Ideal Use Cases
Perfect for enhancing sleep comfort on any mattress, ideal for hot sleepers and those seeking a cooler, more breathable sleeping environment.

Customer Reviews
Highly praised for its cooling effect, softness, and ability to stay in place, enhancing overall sleep quality.
Key specs
- product dimensions:84 x 72 x 21 inches
- size:California King
- color:White - Checkered
- material:Microfiber
- water resistance:Not Water Resistant
9.2

Excellent

Our Rating

9.5
quality of sleep

9.3
Thickness

9.1
Gentle
5

Sweetcrispy

Sweetcrispy Mattress Topper California King, 4 Inch Thick Memory Foam Gel Infused Cooling Toppers Pad for Bed, Sleeper Sofa, RV, Camper, CertiPUR US Certified, Ventilated and Breathable
9.0

Excellent

Our Rating
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6

BEDLORE
BEDLORE California King Mattress Topper Viscose Derived from Bamboo, Thick Pillow Top Mattress Pad with Stretchable Pockets for 6"-18" Mattress, Soft Mattress Topper for Back Pain Relief(Dark Gray)
Main highlights

Ultimate Comfort and Durability
Experience enhanced comfort with a luxurious bamboo viscose and polyester blend.

Ideal for Sensitive Sleepers
Perfect for those seeking a breathable, hypoallergenic sleep solution.

Secure and Stable Fit
Praised for its deep elastic pocket that prevents shifting.
Key specs
- product dimensions:84 x 72 x 18 inches
- size:California King 72x84
- color:Dark Gray
- material:Polyester, Rayon
- closure type:Pull On
8.9

Very Good

Our Rating
7

LIANLAM

3 Inch Mattress Topper California King Size - 1500GSM 3D+7D Down Alternative Fill, Viscose Made from Bamboo Cover, Extra Plush for Back Pain, 8"-18" Deep Pocket (72"x84")
8.7

Very Good

Our Rating
8

COONP
COONP California King Mattress Topper, Extra Thick Pillowtop, Cooling Plush Mattress Pad Cover Cotton Top Bed Topper Protector with 8-21 Inch Deep Pocket
Main highlights

Extra Thick and Luxury Comfort
Drift into a sounder, deeper sleep on this overfilled pillow top mattress topper. Filled with supportive 3D snow down alternative fill, it distributes weight evenly.

Ideal for Firm Mattress Softening
Perfect for those with firm or semi-firm mattresses seeking additional comfort. Works well for side, back, or stomach sleepers needing extra plushness.

Praised for Cooling Technology
Customers love the cooling capabilities that help regulate temperature and wick away sweat, enhancing comfort for hot sleepers.
Key specs
- product dimensions:84 x 72 x 21 inches
- size:California King
- color:White
- material:Cotton
- closure type:Pull On
8.5

Good

Our Rating

9.1
Temperature control

8.7
Gentle

8.7
Simple to clean
9

Best Price Mattress
Best Price Mattress 3 Inch Ventilated Memory Foam Mattress Topper, Cooling Gel Infusion, CertiPUR-US Certified, Cal King, Dorm Essentials, Blue
Main highlights

Key Features
3-inch memory foam topper with gel infusion optimizes airflow, reduces heat, and relieves pressure. CertiPUR-US certified with a 3-year warranty.

Ideal Use Cases
Perfect for revamping old mattresses, enhancing sleep climate, and providing cool, supportive sleep for those experiencing discomfort.

Customer Praise
Most reviews highlight its effectiveness in transforming old mattresses into comfortable sleeping surfaces and its cooling effect.
8.3

Good

Our Rating

8.9
lasts a long time

8.9
worth the money

8.7
Gentle
10

Linenspa

Linenspa Memory Foam Mattress Topper - 2 Inch Gel Infused Memory Foam - Plush Feel - Cooling and Pressure Relieving - CertiPUR Certified - Dorm Room Essentials - California King Size
8.2

Good

Our Rating

9.3
Light weight

9.1
lasts a long time

8.9
Support

10 Best cal king mattress toppers of 2026

1

WhatsBedding 3 Inch Feather Bed Mattress Topper,Duck Feather Memory Foam Mattress Topper, Thickened Topper Layer,California King

How do we rank?

How do we rank?

Analyzing top stores

2

VALUXE 3 Inch Gel Memory Foam Mattress Topper California King Size High Density Cooling Pad Pressure Relief Bed Topper (with Removable & Washable Bamboo Cover)

3

3 Inch Ultra-Fluffy Memory Foam Mattress Topper Cal King for Back Pain, Extra Soft Pillow Top Cal King Mattress Topper with 4X Support, Mattress Pad with Breathable Air Mesh Sides, 6-21'' Deep Pocket

4

MATBEBY California King Mattress Pad - Cooling Breathable Mattress Topper, Quilted Fitted Mattress Protector, Pillow Top Mattress Cover with 8-21" Deep Pocket, Soft, Machine Washable, White, Cal King

9.5

9.3

9.1

5

Sweetcrispy Mattress Topper California King, 4 Inch Thick Memory Foam Gel Infused Cooling Toppers Pad for Bed, Sleeper Sofa, RV, Camper, CertiPUR US Certified, Ventilated and Breathable

6

BEDLORE California King Mattress Topper Viscose Derived from Bamboo, Thick Pillow Top Mattress Pad with Stretchable Pockets for 6"-18" Mattress, Soft Mattress Topper for Back Pain Relief(Dark Gray)

7

3 Inch Mattress Topper California King Size - 1500GSM 3D+7D Down Alternative Fill, Viscose Made from Bamboo Cover, Extra Plush for Back Pain, 8"-18" Deep Pocket (72"x84")

8

COONP California King Mattress Topper, Extra Thick Pillowtop, Cooling Plush Mattress Pad Cover Cotton Top Bed Topper Protector with 8-21 Inch Deep Pocket

9.1

8.7

8.7

9

Best Price Mattress 3 Inch Ventilated Memory Foam Mattress Topper, Cooling Gel Infusion, CertiPUR-US Certified, Cal King, Dorm Essentials, Blue

8.9

8.9

8.7

10

Linenspa Memory Foam Mattress Topper - 2 Inch Gel Infused Memory Foam - Plush Feel - Cooling and Pressure Relieving - CertiPUR Certified - Dorm Room Essentials - California King Size

9.3

9.1

8.9

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