10 Best california king mattress toppers of 2025

Save up to 35% off

Best Choice

1

Biteany

Dual Layer 4 Inch Memory Foam Mattress Topper for Pressure Relief with 4X Support, 2" Pillow Top California King Mattress Topper Viscose Made from Bamboo Plus 2" Cooling Gel Memory Foam Mattress Pad
9.8

Exceptional

Our Rating
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Value for Money

2

Sleep Innovations

Sleep Innovations Dual Layer 4 Inch Memory Foam Mattress Topper, California King Size, Ultra Soft Support, 3 Inch Cooling Gel Memory Foam Plus 1 Inch Fluffy Pillow Top Cover
9.7

Exceptional

Our Rating
3

Serta
Serta ThermaGel Cooling, Pressure-Relieving Memory Foam Mattress Topper, 3 Inch, California King

35% Off
Main highlights

Comfort and Support
Breathable gel infused memory foam engineered for comfort and support, adapts to body contours, enhances sleep surface, and extends mattress life.

Ideal for Cooling Sleep
Perfect for those who overheat at night, thanks to ThermaGel particles providing a cool, comfortable sleep surface. Suitable for various sleeping positions.

Praised Cooling Effect
Customers highly appreciate the cooling properties, noting significant reduction in overheating and improved sleep quality due to optimal temperature regulation.
Key specs
- product dimensions:78 x 47.2 x 7.5 inches
- size:California King
- color:3-inch
- material:Memory Foam
- closure type:Pull On
9.6

Exceptional

Our Rating

9.7
Temperature control

9.3
Gentle

9.3
Easy installation
4

EASELAND
EASELAND California King Mattress Pad Pillow Top Mattress Cover Quilted Fitted Mattress Protector Long Cotton Top 8-21" Deep Pocket Cooling Mattress Topper (72x84 Inches, White)

14% Off
Main highlights

Key Features and Benefits
Ultra-soft 300TC cotton, 30oz down alternative fill, 21-inch deep pocket fitted sheet style, machine washable for easy care.

Ideal Use Cases
Perfect for upgrading firm mattresses, enhancing sleep comfort, and for those seeking a breathable, skin-friendly sleeping surface.

Customer Reviews Highlight
Most praised for its ability to stay in place all night, providing a consistently neat and comfortable sleeping experience.
9.3

Excellent

Our Rating

9.5
Simple to clean

9.1
lasts a long time

8.9
Gentle
5

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
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6

WhatsBedding

WhatsBedding Memory Foam Mattress Topper California King, Pressure-Relieving Cooling Mattress Pad with Secure Strap Design for Back Pain, Soft and Supportive Bed Topper
8.9

Very Good

Our Rating
7

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

18% Off
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
8.7

Very Good

Our Rating

9.1
Temperature control

8.7
Gentle

8.7
Simple to clean
8

SameBed

SameBed Mattress Topper Cal King,Extra Thick Mattress Pad Cover for Back Pain,Cooling Mattress Protector with 8-21 Inch Deep Pocket,Overfilled Down Alternative Filling
8.6

Very Good

Our Rating

9.7
worth the money

8.4
Gentle

8.0
Comfort
9

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
8.5

Good

Our Rating
10

PATSBA
Premium Viscose Made from Bamboo California King Size Mattress Topper for Back Pain, Quilted Fitted Extra Thick Mattress Pad,Pillow Top Mattress Cover with Deep Pocket Up to 21 Inches（72 * 84inch）
Main highlights

Plush Microfiber Support
Ultra-plush microfiber fill provides optimal support for shoulders and hips, enhancing comfort and extending mattress life affordably.

Ideal for Hot Sleepers
Breathable bamboo and polyester blend enhances airflow, reducing overheating and promoting a refreshing sleep experience.

Secure Deep Pocket Fit
Deep elastic pockets fit mattresses from 8 to 21 inches, ensuring the topper stays in place without shifting.
8.3

Good

Our Rating

10 Best california king mattress toppers of 2025

1

Dual Layer 4 Inch Memory Foam Mattress Topper for Pressure Relief with 4X Support, 2" Pillow Top California King Mattress Topper Viscose Made from Bamboo Plus 2" Cooling Gel Memory Foam Mattress Pad

How do we rank?

How do we rank?

Analyzing top stores

2

Sleep Innovations Dual Layer 4 Inch Memory Foam Mattress Topper, California King Size, Ultra Soft Support, 3 Inch Cooling Gel Memory Foam Plus 1 Inch Fluffy Pillow Top Cover

3

Serta ThermaGel Cooling, Pressure-Relieving Memory Foam Mattress Topper, 3 Inch, California King

9.7

9.3

9.3

4

EASELAND California King Mattress Pad Pillow Top Mattress Cover Quilted Fitted Mattress Protector Long Cotton Top 8-21" Deep Pocket Cooling Mattress Topper (72x84 Inches, White)

9.5

9.1

8.9

5

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

6

WhatsBedding Memory Foam Mattress Topper California King, Pressure-Relieving Cooling Mattress Pad with Secure Strap Design for Back Pain, Soft and Supportive Bed Topper

7

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

8

SameBed Mattress Topper Cal King,Extra Thick Mattress Pad Cover for Back Pain,Cooling Mattress Protector with 8-21 Inch Deep Pocket,Overfilled Down Alternative Filling

9.7

8.4

8.0

9

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)

10

Premium Viscose Made from Bamboo California King Size Mattress Topper for Back Pain, Quilted Fitted Extra Thick Mattress Pad,Pillow Top Mattress Cover with Deep Pocket Up to 21 Inches（72 * 84inch）

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