Picking the best flannel sheets king beds can use starts with flat sheet size, pocket depth and care.
This guide compares five king sets on fabric, pocket depth and piece sizes where the listings give them. For other bedding, see our electric blanket guide and our weighted blanket guide. Our picks come from the makers’ specifications on each Amazon listing, not our own testing, and our Editorial Policy explains how we work. Check each listing’s size and care label before you choose.
Our Top 3 Picks for the Best Flannel Sheets King
Ruvanti 100% Cotton Flannel King Sheet Set, Grey Plaid
- 100% cotton double-brushed flannel
- 16-inch deep pocket on the fitted sheet
- Listed as fade, wrinkle and shrink resistant
Comfort Spaces 100% Cotton Flannel King Sheet Set, 4 Piece
- Bear and trees novelty print
- 100% cotton flannel
- Listed as breathable, deep pocket and long lasting
Bare Home 100% Cotton Flannel King Sheet Set, White
- Thread count listed at 300
- 15-inch deep pockets on the fitted sheet
- Includes a 108" x 102" flat sheet
As an Amazon Associate we earn from qualifying purchases.
King Flannel Sheet Sets Compared
| # | Product | Key Features | |
|---|---|---|---|
| 1 |  Ruvanti 100% Cotton Flannel King Sheet Set, Grey Plaid |
| Check Latest Price |
| 2 |  Comfort Spaces 100% Cotton Flannel King Sheet Set, 4 Piece |
| Check Latest Price |
| 3 |  Bare Home 100% Cotton Flannel King Sheet Set, White |
| Check Latest Price |
| 4 |  Tribeca Living Turkish Cotton Flannel King Sheet Set, 4 Piece |
| Check Latest Price |
| 5 |  Eddie Bauer 100% Cotton Flannel King Sheet Set, Birch Forest |
| Check Latest Price |
As an Amazon Associate we earn from qualifying purchases.
1. Ruvanti 100% Cotton Flannel King Sheet Set, Grey Plaid
Best Overall
- 100% cotton double-brushed flannel
- 16-inch deep pocket on the fitted sheet
- Listed as fade, wrinkle and shrink resistant
- Includes a 108" x 102" flat sheet and two 20" x 40" pillowcases
- At 3.1 pounds, it weighs less than Bare Home’s 6.9 pounds
- Care: Machine wash cold, no bleach
- Pocket depth: 16 inches
- Weight: 3.1 pounds
The fitted sheet measures 78" x 80" and the listing says it fits mattresses up to 18 inches, in a grey plaid.
Care is a cold-water machine wash with no bleach, and the listing adds breathable as a feature.
Good match for the Ruvanti Flannel
A fit for king beds when you want a grey plaid cotton set with a deep pocket.
When to choose another pick over the Ruvanti Flannel
Skip it if you want a weightier set, since Bare Home lists 6.9 pounds.
As an Amazon Associate we earn from qualifying purchases.
2. Comfort Spaces 100% Cotton Flannel King Sheet Set, 4 Piece
Best Bear and Trees Print
- Bear and trees novelty print
- 100% cotton flannel
- Listed as breathable, deep pocket and long lasting
- All-elastic pocket that fits mattresses up to 14 inches
- The listing says lint is a natural by-product of brushing
- Care: Machine wash cold, tumble dry low, no bleach
- Pocket depth: 14 inches
- Fitted sheet: 78" x 81"
The set includes a 108" x 102" flat sheet, a 78" x 81" fitted sheet and two pillowcases.
The listing suggests adding half a cup of vinegar to the wash, and the listed season is all.
Good match for the Comfort Spaces
Suits king beds when you want a bear and trees print on a cotton set.
When to choose another pick over the Comfort Spaces
Skip it if you want a deeper pocket, since Ruvanti Flannel lists 16 inches and Bare Home lists 15.
As an Amazon Associate we earn from qualifying purchases.
3. Bare Home 100% Cotton Flannel King Sheet Set, White
Most Substantial Weight
- Thread count listed at 300
- 15-inch deep pockets on the fitted sheet
- Includes a 108" x 102" flat sheet
- Two 20" x 40" pillowcases come in the set
- The listing says the brushed texture may develop some light pilling over time
- Winter is the listed season, while Ruvanti Flannel, Comfort Spaces and Tribeca Living list all seasons
- Care: Machine wash cold, gentle cycle
- Pocket depth: 15 inches
- Weight: 6.9 pounds
The listed item weight is 6.9 pounds, compared with 3.1 pounds for Ruvanti Flannel, and the fitted sheet measures 78" x 80".
Care says to wash in cold water on a gentle cycle and avoid overloading the dryer.
Good match for the Bare Home
Choose it for king beds if you want a white set with a listed weight of 6.9 pounds.
When to choose another pick over the Bare Home
Skip it if you want a stated fit for mattresses up to 18 inches, since Ruvanti Flannel lists it.
As an Amazon Associate we earn from qualifying purchases.
4. Tribeca Living Turkish Cotton Flannel King Sheet Set, 4 Piece
Best Extra-Deep Pocket
- Extra-deep pockets with full elastic
- Made of 100% Turkish cotton flannel
- Envelope-closure pillowcases with an oversized flat sheet
- Listed for all seasons
- Thread count of 170, matching Ruvanti Flannel, is lower than Bare Home at 300 and Comfort Spaces at 400
- Care: Machine wash
- Season: All
- Thread count: 170
The listing names the Brentwood Plaid pattern and shows natural, grey, blue, white and camel as other colors and patterns.
Care is given as machine wash, so follow the listing’s care label for water temperature.
Good match for the Tribeca Living
A good fit for king beds with thicker mattresses that need extra pocket depth.
When to choose another pick over the Tribeca Living
Skip it if you want the flat sheet size spelled out, since four other picks list 108" x 102".
As an Amazon Associate we earn from qualifying purchases.
5. Eddie Bauer 100% Cotton Flannel King Sheet Set, Birch Forest
Best Birch Forest Print
- Birch Forest print
- Brushed 100% cotton flannel
- All-around elastic on the fitted sheet
- Includes a 108" x 102" flat sheet and two 20" x 40" pillowcases
- Fabric softeners are ruled out along with bleach in the care notes
- Care: Machine wash cold, gentle cycle, tumble dry low
- Fitted sheet: 78" x 80"
- Flat sheet: 108" x 102"
The fitted sheet measures 78" x 80", the same size as the fitted sheets for Ruvanti Flannel and Bare Home.
Care is a cold gentle cycle with like colors and tumble dry low, with a warm iron as needed.
Good match for the Eddie Bauer King
A pick for king beds when you want a cotton set in a Birch Forest print.
When to choose another pick over the Eddie Bauer King
Skip it if pocket depth matters, since Ruvanti Flannel lists 16 inches, Bare Home 15 and Comfort Spaces 14.
As an Amazon Associate we earn from qualifying purchases.
How to Choose the Best Flannel Sheets King
- Compare flat sheet sizes first, since Ruvanti Flannel, Comfort Spaces, Bare Home and Eddie Bauer King list 108" x 102".
- Pocket depth ranges from 14 inches for Comfort Spaces to 16 inches for Ruvanti Flannel.
- Thread counts listed are 170 for Ruvanti Flannel and Tribeca Living, 300 for Bare Home and 400 for Comfort Spaces.
- Weights listed are 3.1 pounds for Ruvanti Flannel and 6.9 pounds for Bare Home.
- Read the lint and pilling notes, since Comfort Spaces mentions lint and Bare Home mentions pilling.
Frequently Asked Questions
Which pick fits mattresses up to 18 inches?
Ruvanti Flannel fits mattresses up to 18 inches, while Comfort Spaces fits up to 14 inches.
What size are the flat sheets?
Four picks list 108" x 102" flat sheets: Ruvanti Flannel, Comfort Spaces, Bare Home and Eddie Bauer King. Tribeca Living lists an oversized flat sheet.
Do these sets call for cold water?
Ruvanti Flannel, Comfort Spaces, Bare Home and Eddie Bauer King call for cold water, and Tribeca Living lists machine wash.
What comes in each set?
Each includes a flat sheet, a fitted sheet and two pillowcases.
The Bottom Line
Our best flannel sheets king pick is Ruvanti Flannel, a 100% cotton set with a 16-inch pocket. Choose Comfort Spaces for a bear and trees print, Bare Home for its listed 6.9 pounds, or Tribeca Living for extra-deep pockets.
Best Overall: Ruvanti 100% Cotton Flannel King Sheet Set, Grey Plaid Check Latest Price
Best Bear and Trees Print: Comfort Spaces 100% Cotton Flannel King Sheet Set, 4 Piece Check Latest Price
Most Substantial Weight: Bare Home 100% Cotton Flannel King Sheet Set, White Check Latest Price
Measure your mattress before you order so the pocket depth fits.
As an Amazon Associate we earn from qualifying purchases.
Write Your Review
No reviews yet. Be the first to share your experience!