Flannel Split Flex Top King Sheets For Adjustable Beds

Our Flannel Split Flex Top King Sheets for Adjustable Beds includes our CinchFit fitted sheet design. They cinch for a perfect fit that does not pop off and will not rip.

$259.99

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NOTE: This is a seasonal product. We are sold out for the 2021-2022  winter season. Check back in October of 2022 for new offerings.

Our Flannel Split Flex Top King Sheets for Adjustable Beds includes our CinchFit fitted sheet design. They cinch for a perfect fit that does not pop off and will not rip. Also, known as Split Flex Head King Size. Our CinchFit Fitted Sheet design is perfect for Adjustable Mattress Sizes and our fitted sheet design makes sure the sheets stay on! All sheet sets have directional tags to indicate where the Head and Foot are located to make it even easier for our customers to make their beds. For split flex top sheets sizes, our FlexSquare reinforcement prevents tears in the flex center. No more rips or tears on your flex top sheets. Maximum mattress depth: 15 inches. 

Fabric Features:

  • 100% Cotton Flannel
  • OEKO-TEX® 100 certified - guaranteed safe for all ages
  • Breathable for year-round comfort
  • Double brushed for softness
  • Wrinkle resistant
  • Easy to care for and dries quickly

Sizes:

Split Flex Top King - (1) Fitted King With Split Top, (1) Flat Sheet 108" x 102", (2) 20" x 40" Pillow Cases 

Features:

  • Cinching Stay On & Adjustable Fitted Sheet Design
  • Directional Tags for ease of bed making
  • Fitted sheet can be tightened over time for a snug fit for many years
  • Our fitted sheet design fits the maximum depth and then cinches to fit smaller depths
  • Can be tightened for a snug and tight fit Adorable Cord Storage Pocket keeps the cording safe in the washer and dryer

Special Features of our Flex Top Sheets: 

Our Split Flex Fitted Sheet design is the only design that doesn't rip and fits snugly on adjustable mattresses. Designed and created by us in 2016 and using the principles of sail repair, our FlexSquare reinforcement prevents our sheets from ripping in the flex center. We also use a stretchable, white jersey material in the center boxing area for added flexibility to prevent tears.  Our Flex Top Fitted Sheets are made to fit splits of 35" from the head. With our flexible jersey material in the flex center, they can accommodate many different split lengths.

Special Care Instructions: 

  • Machine wash in cold water with similar colors
  • Tumble dry low
  • Do not bleach


More detailed information on "Keeping Your Sheets Looking As Good As New" can be found HERE.

Folding Your Sheets: 

Once you receive your sheets, be sure to check out our how to videos on how to fold your fitted sheet HERE.

Additional information

Weight 4 lbs
Dimensions 14 × 12 × 4 in
Flannel Color Options

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13 reviews for Flannel Split Flex Top King Sheets For Adjustable Beds

  1. Gina Hamilton (verified owner)

    Love these sheets. I ordered about 3-4 years ago and was very unhappy with the flannel sheets as the material was scarcely lacking and they also shrunk!!!
    I decided to give them one more try this year since I really really needed a new set after the last one had a hole or two.
    WELL… after all the problems last time, and after voicing my concerns about the small sheets and shrinking issues…. I have been happily surprised!
    The sheets arrived and to my surprise they have fixed the problems with the sheets… added inches to the flat sheet and also to the fitted sheet (split head) and even has room to shrink as flannel always does!!!
    THANK YOU Quahog for listening to me and for fixing the sheet problems to make a NOW quality soft amazing flannel sheet!
    As long as your quality continues I will be ordering new flannels every few years! YES YES YES!
    Love these sheets… now they have been quality controlled and I must say they are amazing and wash up so nicely!
    THANK YOU!!!!

  2. H Wright (verified owner)

    Best Sheets Ever. Love , love, love the flannel King flex top sheets!!

    I’ve had a set for a year or two and they’re still like new. Other flex top sheets become worn and tear at the “V” where the flex top
    meets, the Quahog Bay sheets show zero sign of wear. Also, because of the cinch fit cord , they never pop off the corner of the mattress!

    I would definitely recommend these sheets to anyone looking for Flex top or Split King bedding. They do cost more but in the end , you can purchase multiple sets of lesser quality sheets online
    that rip after a few months use -or- you can get 1 set of Quahog Bay sheets that will last you for years. It’s a simple choice 🙂

  3. H Wright (verified owner)

    Best Sheets Ever. Love , love, love the flannel King flex top sheets!!

    I’ve had a set for a year or two and they’re still like new. Other flex top sheets become worn and tear at the “V” where the flex top
    meets, the Quahog Bay sheets show zero sign of wear. Also, because of the cinch fit cord , they never pop off the corner of the mattress!

    I would definitely recommend these sheets to anyone looking for Flex top or Split King bedding. They do cost more but in the end , you can purchase multiple sets of lesser quality sheets online
    that rip after a few months use -or- you can get 1 set of Quahog Bay sheets that will last you for years. It’s a simple choice 🙂

  4. H Wright (verified owner)

    Best Sheets Ever. Love , love, love the flannel King flex top sheets!!

    I’ve had a set for a year or two and they’re still like new. Other flex top sheets become worn and tear at the “V” where the flex top
    meets, the Quahog Bay sheets show zero sign of wear. Also, because of the cinch fit cord , they never pop off the corner of the mattress!

    I would definitely recommend these sheets to anyone looking for Flex top or Split King bedding. They do cost more but in the end , you can purchase multiple sets of lesser quality sheets online
    that rip after a few months use -or- you can get 1 set of Quahog Bay sheets that will last you for years. It’s a simple choice 🙂

  5. Jason DeSalvo (verified owner)

    A Fabulous USA-Made Bedding Source. Quahog Bay Bedding is the real deal. Their bedding is USA-made, they offer excellent, responsive customer service and their prices are reasonable. My wife and I will be buying all of our bedding from them from now on!

  6. Julie Lofgren

    Thrilled. I love your sheets so much ….my first order was flannel sheets that were warm and cozy…weather getting a little warmer so I ordered cotton sheets ..just slept on them last night ,slept like a baby. Your sheets are of are the highest quality..I know I will order my sheets when needed..Thank You for a USA made quality product

  7. NEWMARK, BERTRAM

    The entire experience was perfect. The quality of the flannel sheets, the fit (mine was custom fit for very unusual size mattresses), the feel, and the personal service were above my expectations.

  8. Laura1of5

    We love the immediate softness of the sheets and the obvious quality and they fit well on our split top king sleep number bed. But they are far too expensive, limited in color, no patterns and it took a long time to receive them because they had run out of the fabric. However I was only told that after I asked what was taking so long, so not great customer communication. However I gave four stars because I could not give 3 1/2.

  9. Gina Caamano

    Excellent bedding and excellent customer service. Very happy with them!

  10. Devon

    Bought sheets for my sleep number split king mattress. Sleep number charges a fortune for their sheets and the strange shape made it nearly impossible to find sheets that fit. Quahog Bay makes a quality product for a better price.

  11. Paul S.

    Love the flannel sheets, fit our slurp number split flex king beautifully.

  12. Vicky

    Another great experience!

  13. Vicky

    Excellent sheets!!!! They fit my sleep number adjustable bed very well!!! I am very happy with the product and the customer service. I will be ordering another set today.

Only logged in customers who have purchased this product may leave a review.

We are currently shipping approximately 2 weeks from time of order. We ship to the continental US only.

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