Choosing the best sheet sets for split king beds starts with checking how your adjustable bed is built. Most split king sets include two Twin XL fitted sheets and one shared flat sheet, while a flex-top set is made for a different mattress layout. The options below cover brushed microfiber, bamboo-derived viscose, Egyptian cotton, and a flex-top design so you can compare materials and fit before you buy.
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| Sheet set | Material | Pieces | Best for |
|---|---|---|---|
| CGK Unlimited Split King 7-Piece Set | Brushed microfiber | 7 | A soft, cozy feel and extra pillowcases |
| Kickoff Home Bamboo Viscose Split King Set | Viscose from bamboo | 5 | Deep mattresses and a breathable feel |
| Good Sleep Bedding Egyptian Cotton Set | Egyptian cotton | 5 | Cotton sateen and a classic sheet feel |
| Clara Clark Flex Top King Set | Brushed microfiber | 6 | A top-split king mattress |
Our Picks: Best Sheet Sets For Split King Beds reviews
CGK Unlimited Split King: A Cozy Microfiber Set With Extra Pillowcases
This set is made from double-brushed microfiber, a fabric chosen for its soft, cozy hand. It includes two fitted sheets sized for Twin XL mattresses, one shared flat sheet, and four pillowcases. That extra pair of pillowcases is useful if you keep several pillows on the bed or want a spare set for changing bedding.
The fitted sheets are listed for mattresses up to about 16 inches deep. That should suit many standard split king mattresses, but measure yours first if you use a thick mattress or a topper. The set’s warm, plush feel may be especially appealing if you prefer snug bedding over a crisp, cool cotton texture.
Compared with the bamboo-viscose and cotton options here, this is the pick for a softer, cozier microfiber feel rather than a natural-fiber sheet. Its OEKO-TEX MADE IN GREEN certification is a useful manufacturing credential, but it does not change the fabric’s feel or guarantee a particular fit on your mattress.
Pros:
- Includes two Twin XL fitted sheets and one shared flat sheet.
- Four pillowcases provide an extra pair.
- Fitted sheets are designed for mattresses up to about 16 inches deep.
- Double-brushed microfiber has a soft, cozy feel.
Cons:
- Microfiber may feel warmer than cotton or other breathable options.
- Mattresses deeper than the listed fit limit may not work well.
Verdict: Choose this set if you want a cozy microfiber feel, four pillowcases, and a standard split king layout.
Kickoff Home Bamboo Viscose: Deep Pockets and a Roomy Flat Sheet
Kickoff Home’s five-piece set uses viscose from bamboo in a sateen weave. It includes two Twin XL fitted sheets, one shared flat sheet, and two pillowcases. The flat sheet is listed at 112 by 108 inches, making it wider than the flat sheets in the other standard split king sets in this roundup.
The fitted sheets are designed for mattresses up to 19 inches deep. Elastic around the edges and corner straps are intended to help keep each sheet in place as the adjustable bases move. These details may be helpful if your mattress is thick or your fitted sheets tend to shift, though mattress dimensions still matter.
This is the most feature-focused option of the standard split king sets here: it combines the deepest stated pocket size with a wide flat sheet and a hidden pillowcase zipper. The fabric is viscose from bamboo, not cotton; if you prefer the familiar feel of cotton, the Good Sleep Bedding set may be a better match. The listing also states that the set is OEKO-TEX certified and machine washable.
Pros:
- Fitted sheets are designed for mattresses up to 19 inches deep.
- Corner straps and full elastic are intended to help secure the fitted sheets.
- Extra-wide shared flat sheet offers more coverage.
- Includes a hidden zipper on each pillowcase.
Cons:
- Includes two pillowcases, fewer than the CGK and Clara Clark sets.
- Viscose from bamboo has a different feel from cotton and microfiber.
Verdict: Pick this set if you want viscose-from-bamboo sheets, a deeper stated mattress fit, and extra flat-sheet coverage.
Good Sleep Bedding Egyptian Cotton: A Sateen Set With a Classic Cotton Feel
This five-piece set is made from Egyptian cotton with a sateen weave. It comes with two Twin XL fitted sheets, a shared flat sheet, and two pillowcases. The cotton construction offers an alternative to the microfiber and bamboo-derived viscose choices, while the sateen weave is intended to give the fabric a smooth, silky feel.
The fitted sheets are listed to fit mattresses up to 16 inches deep. That makes the set a possible match for many standard split king beds, but it may be less suitable for a particularly thick mattress or a tall topper. The product description also notes that the displayed sage color may vary slightly with lighting and screen settings.
Unlike the Kickoff Home set, this option does not list corner straps or a deeper 19-inch pocket. Its appeal is more straightforward: cotton fabric, sateen construction, and the standard two-fitted-sheet split king arrangement. If you want extra pillowcases or a warmer microfiber feel, the CGK set offers those features instead.
Pros:
- Made from Egyptian cotton with a sateen weave.
- Includes two Twin XL fitted sheets for a standard split king bed.
- Fitted sheets are listed for mattresses up to 16 inches deep.
- Offers a cotton alternative to microfiber and viscose from bamboo.
Cons:
- Includes two pillowcases rather than four.
- The stated pocket depth is less than the Kickoff Home set’s.
Verdict: Choose this set if you want Egyptian cotton in a sateen weave and your mattress is within the stated 16-inch fit limit.
Clara Clark Flex Top King: A Specialized Fit for Top-Split Beds
This set is designed for a flex-top king bed, which is not the same sheet layout as a standard split king. Instead of two separate Twin XL fitted sheets, it has one king fitted sheet with a cut from the top extending 34 inches. The set also includes a shared flat sheet and four pillowcases.
The sheets are made from double-brushed microfiber. The listing describes the fabric as soft, cool, and breathable, and says it is designed to resist fading, stains, shrinking, and wrinkles. For care, it recommends machine washing in cold water and tumble drying on low. Remove the fitted sheet’s special cut and mattress shape from the equation before buying: this set is intended for a particular bed design, not every adjustable king.
Compared with the other picks, Clara Clark is the only flex-top option and does not include two separate Twin XL fitted sheets. The listed description also does not state a mattress-depth limit, so check the current product details and your bed measurements if mattress thickness is a concern.
Pros:
- Made specifically for a flex-top king mattress layout.
- Includes four pillowcases.
- Double-brushed microfiber is designed for a soft feel.
- Care instructions call for cold machine washing and low tumble drying.
Cons:
- Not a standard set with two separate Twin XL fitted sheets.
- The listed description does not provide a mattress-depth limit.
Verdict: Buy this set only if your bed is a flex-top king with a compatible split at the head, not a standard split king with two separate Twin XL mattresses.
How to Choose Sheets for a Split King Bed
Confirm Your Bed’s Mattress Layout
A standard split king usually uses two Twin XL mattresses, so its sheet set needs two fitted sheets and one shared flat sheet. A flex-top king uses a different fitted-sheet design, such as one king sheet cut at the head. Check your bed’s mattress layout before shopping; a set made for one style may not fit the other.
Measure Mattress Depth
Measure from the bottom edge to the top of the mattress, including any topper that stays on the bed. Compare that measurement with the fitted-sheet pocket depth. The sets here list limits of about 16 inches for CGK and Good Sleep Bedding, up to 19 inches for Kickoff Home, and no depth limit in the supplied Clara Clark description. A close fit can make sheets hard to put on or more likely to pull loose as the bed moves.
Choose a Fabric That Suits Your Sleep Preferences
Microfiber, viscose from bamboo, and cotton have different feels. The microfiber sets are described as soft and brushed; the CGK set is positioned as cozy and warm. Kickoff Home uses a sateen weave in viscose from bamboo, while Good Sleep Bedding uses Egyptian cotton in a sateen weave. If you tend to prefer one fabric over another, use that preference as a starting point rather than assuming every set will feel the same.
Check the Piece Count and Pillowcase Size
Count the fitted sheets, flat sheet, and pillowcases rather than relying only on the set’s piece total. The standard split king sets here include two fitted sheets and one flat sheet, but the number of pillowcases varies. CGK and Clara Clark include four; Kickoff Home and Good Sleep Bedding include two. The listed pillowcases are sized for standard king pillows at 20 by 40 inches.
Look for Details That Match Your Needs
Corner straps may help keep fitted sheets secure on an adjustable bed, while a wider flat sheet can provide more coverage at the sides. Kickoff Home lists both corner straps and an extra-wide flat sheet. These features may matter if your bed moves often or you want more fabric to tuck in, but they are not a substitute for checking the mattress dimensions.
Consider Care Instructions and Fabric Claims
Follow the care directions provided with the exact set you choose. Clara Clark specifies cold machine washing and low tumble drying; the Kickoff Home listing says its set is machine washable. Also, keep the material wording clear: viscose from bamboo is not the same fabric as cotton or microfiber. Certifications listed for a product can help with manufacturing or environmental standards, but they do not tell you whether its texture will suit you.
FAQs
What sheets do I need for a standard split king bed?
Most standard split king beds use two Twin XL fitted sheets and one shared king-size flat sheet. Check your bed’s layout and mattress measurements before ordering, since flex-top beds use a different fitted-sheet design.
Are split king sheets the same as Twin XL sheets?
A split king set typically includes two Twin XL fitted sheets, but it also includes a shared flat sheet and pillowcases. Buying a set made for a single Twin XL mattress will not provide all the pieces for a split king bed.
How deep should split king fitted sheets be?
Choose a pocket depth that matches the full height of your mattress, including any topper you leave on the bed. Among these picks, Kickoff Home lists a fit for mattresses up to 19 inches deep; CGK and Good Sleep Bedding list about 16 inches.
Can I use a flex-top king set on a standard split king?
Not usually. The Clara Clark set has one king fitted sheet with a cut at the top, while a standard split king generally needs two separate Twin XL fitted sheets. Confirm your mattress configuration before buying.
Which set has the most pillowcases?
The CGK Unlimited and Clara Clark sets each include four pillowcases. Kickoff Home and Good Sleep Bedding include two.
Which option is listed for the deepest mattress?
Kickoff Home lists fitted sheets designed for mattresses up to 19 inches deep. Check your mattress and topper measurements against the current product details before ordering.
Final Recommendation
For a standard split king, the CGK Unlimited set is a practical choice if you want cozy brushed microfiber and four pillowcases. Choose Kickoff Home if you need the deepest stated pocket fit and prefer viscose from bamboo, or Good Sleep Bedding if you want Egyptian cotton in a sateen weave. If you have a flex-top king, the Clara Clark set is the specialized option—but confirm that your mattress layout matches its cut-top fitted sheet.