10 Best flex king sheets of 2026

Save up to 14% off

1

Cottingon
Cottingon 4 Piece Flex Head King Sheet Set, Top 34 Inch Split Sheets for Sleep Number Adjustable Beds, Soft Breathable 100% Egyptian Cotton, Fits Upto 16" Deep Mattress 78"X80"+ 34", White
Main highlights

Luxurious Comfort and Fit
Experience ultimate comfort with OEKO-TEX certified 100% extra long staple cotton fabric.

Ideal for Adjustable Beds
Expertly tailored for Sleep Number, Flex Top King, Split King, and Split Head beds.

Highly Praised for Softness
Customers appreciate the sheets' softness, durability, and perfect fit.
9.8

Exceptional

Our Rating

8.4
Comfort

8.2
Gentle

8.0
worth the money
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2

Cottingon
Cottingon 4 Piece Flex Head King Sheet Set, Top 34 Inch Split Sheets for Sleep Number Adjustable Beds, Soft Breathable 100% Egyptian Cotton, Fits Upto 16" Deep Mattress 78"X80"+ 34", Light Grey
Main highlights

Key Features
Luxurious 100% Egyptian Cotton, sateen weave, and deep pocket design for ultimate comfort and fit.

Ideal Use
Perfect for enhancing bedroom decor and providing an exceptional sleep experience in any room.

Customer Praise
Highly commended for its softness and quality improvement after washing, with outstanding customer service highlighted.
Key specs
- color:Various solid colors
- material:100% Egyptian Cotton
- size:Split Head King Size
- special feature:Deep pocket, sateen weave
- closure:Elasticized fitted sheet
9.5

Excellent

Our Rating

8.4
Comfort

8.2
Gentle

8.0
worth the money
3

Clara Clark
Clara Clark Flex Top King Sheets, 6 Piece Set - Hotel Luxury Sheets for Top Split King Bed, Super Soft Bedding Set, Head Split King Silver

10% Off
Main highlights

Key Features and Benefits
Microfiber cloths offer exceptional cleaning power, durability, and eco-friendliness, excelling in trapping dirt and absorbing liquids without chemicals.

Ideal Use Cases
Ideal for cleaning screens, lenses, surfaces, and for detailing cars. Perfect in homes, offices, and for personal care.

Customer Reviews Highlight
Most praised for leaving streak-free finishes on surfaces, especially glass and stainless steel, without shedding fibers or lint.
9.4

Excellent

Our Rating

8.9
Comfort

8.9
Gentle

8.7
Wrinkle free
4

CGK Unlimited

Split Head King Sheets Set - Top Split King Sheets for Adjustable Beds, Easy-Fit Split Head King Mattress - Flex Split Top King Sheets, Easy-Fit, Breathable, Deep Pocket Split King Sheets - Navy Blue

11% Off
9.3

Excellent

Our Rating
5

Bare Home
Bare Home Split Head Flex King Sheet Set - 1800 Ultra-Soft Microfiber Bed Sheets - Double Brushed - Deep Pockets - Easy Fit - 4 Piece Set - FlexTop Bedding Sheets (Grey)
Main highlights

Ultra-Soft Fabric Comfort
Hydro-brushed microfiber offers year-round comfort, keeping you warm in winter and cool in summer.

Perfect for Adjustable Beds
Designed for split head flex king beds, ideal for adjustable mattresses.

Highly Praised Fit
Customers love the deep pockets and all-around elastic for a secure fit.
9.1

Excellent

Our Rating

9.7
Simple to clean

9.5
Comfort

9.3
Gentle
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6

CGK Unlimited

Split Head King Sheets Set - Top Split King Sheets for Adjustable Beds, Easy-Fit Split Head King Mattress - Flex Split Top King Sheets, Easy-Fit, Breathable, Deep Pocket Split King Sheets - Dark Grey

11% Off
9.0

Excellent

Our Rating
7

CGK Unlimited
Split Head King Sheets Set – Top Split King Sheets for Adjustable Beds, Easy-Fit Split Head King Mattress - Flex Split Top King Sheets, Easy-Fit, Breathable, Deep Pocket Split King Sheets Set - White

11% Off
Main highlights

Breathable and Durable Design
These sheets offer superior comfort and breathability, resisting fading and maintaining texture after multiple washes.

Ideal for Adjustable Beds
Perfect for top split King mattresses, allowing each sleeper to adjust their side for optimal comfort.

Luxurious Softness Praised
Customers frequently highlight the luxurious softness and snug fit of these sheets.
Key specs
- color:White
- material:Microfiber
- size:Flex Top King
- special feature:Wrinkle-Free
- closure:Pull-On
8.9

Very Good

Our Rating
8

Horbaunal

Horbaunal Split Top King Fitted Sheet Only for Adjustable Beds, Soft Microfiber Split Head Flex King Fitted Bed Sheet Fits Up to 16" Deep Mattress, Dark Grey
8.8

Very Good

Our Rating
9

Royal Bliss 1900
Royal Bliss 1900 Top Split Flex Head King Size Sheet Set - Egyptian Quality Ultra-Soft Bed Sheets | Double Brushed | Deep Pockets- Easy Fit - 4 Piece Set- Fade Resistant (Top Split, White)

14% Off
Main highlights

Ultra-Soft Fabric Benefits Comfort
Our proprietary hydro-brushed fabric is ultra-soft, lightweight, and airy, keeping you warm in winter and cool in summer. Available in many colors.

Perfect for Split Head Flex King Beds
Ideal for Split Head Flex King beds, with extra deep pockets and all-around elastic for a secure fit. Fits mattresses up to 16 inches.

Highly Praised for Durability and Softness
Customers love the durability and softness of these sheets. They fit perfectly, stay in place, and maintain color and quality after frequent washes.
Key specs
- color:White
- material:Microfiber
- size:King
- special feature:Fully Elasticized, Fade Resistant
- closure:Zipper
8.7

Very Good

Our Rating

9.1
Gentle

8.9
Stain resistance

8.9
Comfort
10

Bare Home
Bare Home Fitted Bottom Sheet Split Head Flex King Size - Premium 1800 Microfiber - Ultra-Soft Hotel Luxury - Deep Pocket - Durable and Long Lasting (Split Head Flex King, White)
Main highlights

Luxurious Comfort
Experience hotel-quality softness with 1800 microfiber, warm in winter, cool in summer.

Perfect for Adjustable Beds
Ideal for split head flex king mattresses up to 15 inches deep.

Highly Praised Softness
Customers love the ultra-soft and durable feel of the fabric.
8.5

Good

Our Rating

10 Best flex king sheets of 2026

1

Cottingon 4 Piece Flex Head King Sheet Set, Top 34 Inch Split Sheets for Sleep Number Adjustable Beds, Soft Breathable 100% Egyptian Cotton, Fits Upto 16" Deep Mattress 78"X80"+ 34", White

8.4

8.2

8.0

How do we rank?

How do we rank?

Analyzing top stores

2

Cottingon 4 Piece Flex Head King Sheet Set, Top 34 Inch Split Sheets for Sleep Number Adjustable Beds, Soft Breathable 100% Egyptian Cotton, Fits Upto 16" Deep Mattress 78"X80"+ 34", Light Grey

8.4

8.2

8.0

3

Clara Clark Flex Top King Sheets, 6 Piece Set - Hotel Luxury Sheets for Top Split King Bed, Super Soft Bedding Set, Head Split King Silver

8.9

8.9

8.7

4

Split Head King Sheets Set - Top Split King Sheets for Adjustable Beds, Easy-Fit Split Head King Mattress - Flex Split Top King Sheets, Easy-Fit, Breathable, Deep Pocket Split King Sheets - Navy Blue

5

Bare Home Split Head Flex King Sheet Set - 1800 Ultra-Soft Microfiber Bed Sheets - Double Brushed - Deep Pockets - Easy Fit - 4 Piece Set - FlexTop Bedding Sheets (Grey)

9.7

9.5

9.3

6

Split Head King Sheets Set - Top Split King Sheets for Adjustable Beds, Easy-Fit Split Head King Mattress - Flex Split Top King Sheets, Easy-Fit, Breathable, Deep Pocket Split King Sheets - Dark Grey

7

Split Head King Sheets Set – Top Split King Sheets for Adjustable Beds, Easy-Fit Split Head King Mattress - Flex Split Top King Sheets, Easy-Fit, Breathable, Deep Pocket Split King Sheets Set - White

8

Horbaunal Split Top King Fitted Sheet Only for Adjustable Beds, Soft Microfiber Split Head Flex King Fitted Bed Sheet Fits Up to 16" Deep Mattress, Dark Grey

9

Royal Bliss 1900 Top Split Flex Head King Size Sheet Set - Egyptian Quality Ultra-Soft Bed Sheets | Double Brushed | Deep Pockets- Easy Fit - 4 Piece Set- Fade Resistant (Top Split, White)

9.1

8.9

8.9

10

Bare Home Fitted Bottom Sheet Split Head Flex King Size - Premium 1800 Microfiber - Ultra-Soft Hotel Luxury - Deep Pocket - Durable and Long Lasting (Split Head Flex King, White)

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