Choosing sheets for a split king takes more than picking the right color: you need to match the bedding to how your mattress is divided. A standard split king set has two fitted sheets—one for each side—plus a shared flat sheet. A split-top king is different: its upper section moves independently, so it needs a fitted sheet made for that layout. The picks below include options for both designs, along with one set that is not sized for a split king.
Quick Comparison
| Product | Best for | What’s included | Key fit detail |
|---|---|---|---|
| CGK Unlimited Split King 7-Piece Sheet Set | Best overall standard split king set | Two fitted sheets, one flat sheet, four pillowcases | Fitted sheets fit mattresses up to around 16 inches deep |
| Horbaunal Split Top King Fitted Sheet | Split-top and flex-head adjustable beds | One fitted sheet | Designed for a split-top king; up to 16-inch pockets |
| Hearth & Harbor California King Sheet Set | California king mattresses, not standard split kings | One fitted sheet, one flat sheet, four pillowcases | Fitted sheet is California king size and fits 18–24-inch mattresses |
| Kickoff Home Bamboo Viscose Split King Set | Split king shoppers seeking bamboo viscose | Two fitted sheets, one flat sheet, two pillowcases | Fitted sheets fit mattresses up to 19 inches deep |
Our Picks: Best Sheets For Split King Mattress reviews
1. CGK Unlimited Split King 7-Piece Set: Best Overall
This is the most complete option here for a standard split king. The set includes two fitted sheets measuring 39 by 80 inches, one shared flat sheet, and four pillowcases. That layout gives each side of the bed its own fitted sheet while keeping a single flat sheet across the top.
The sheets are made from double-brushed microfiber, which the product description characterizes as soft, breathable, and lightweight. The fitted sheets are designed for mattresses up to around 16 inches deep. An OEKO-TEX MADE IN GREEN certification is also listed, a useful detail for shoppers who consider how bedding is made.
Microfiber is a practical choice if you want a smooth-feeling set with a straightforward care routine. The main trade-off is that it is not cotton or bamboo viscose, so shoppers who specifically prefer those fibers may want another option. Also check your mattress depth before buying; the stated pocket capacity may not suit a mattress taller than 16 inches.
Pros:
- Two fitted sheets sized for a standard split king
- Includes a shared flat sheet and four pillowcases
- Double-brushed microfiber is described as soft and breathable
- OEKO-TEX MADE IN GREEN certification is listed
Cons:
- Fitted sheets are intended for mattresses up to around 16 inches deep
- Microfiber may not suit shoppers who prefer natural-fiber bedding
Verdict: Choose this set if you want a complete, conventional split king bundle with two fitted sheets and four pillowcases.
2. Horbaunal Split Top King Fitted Sheet: Best for Flex-Head Beds
This is a fitted sheet only, made for a split-top or flex-head king mattress. Its listed dimensions are 78 by 80 inches, with pockets for mattresses up to 16 inches deep. That design differs from a standard split king set: it is a single fitted sheet intended for the split at the head of a king-size mattress, not two separate twin XL fitted sheets.
The sheet is made from microfiber, and the product description lists moisture-wicking fabric and a side pocket for small items such as a phone, glasses, or remote. It is machine washable, with care instructions to use cold water and tumble dry on low. These details may appeal if you want a simple fitted-sheet replacement rather than a full bedding set.
The biggest buying caution is the bed layout. Confirm that your mattress is a split-top king before ordering, and measure its depth. This option does not include a flat sheet or pillowcases, and its listed 78-by-80-inch size does not match the two separate fitted sheets in a standard split king bundle.
Pros:
- Made specifically for split-top and flex-head king mattresses
- Side pocket provides a place for small bedside items
- Microfiber fabric is described as breathable and moisture-wicking
- Machine washable with low-effort care instructions
Cons:
- Fitted sheet only; no flat sheet or pillowcases are included
- Not the right format for a standard split king with two separate mattresses
Verdict: Consider this sheet only if your bed is a split-top king and you need a fitted sheet rather than a complete set.
3. Hearth & Harbor California King Set: Not a Standard Split King Fit
This set is listed as California king, not split king. It includes one fitted sheet measuring 72 by 84 inches, one flat sheet, and four pillowcases. The fitted sheet is designed for mattresses between 18 and 24 inches deep, which may make it worth considering for a deep California king mattress—but those dimensions do not match the two separate fitted sheets needed for a standard split king.
The fabric is double-brushed microfiber. The product description says it is made to resist pilling, snagging, fading, stains, shrinkage, and wrinkles, and it can be machine washed and tumble dried on low. Those features may suit shoppers looking for a deep-pocket California king set that is easy to care for.
For a split king shopper, the central drawback is size and configuration, not fabric. A single California king fitted sheet will not provide separate fitted coverage for two independently moving mattresses. Avoid choosing it just because the flat sheet and pillowcases sound suitable; confirm that your mattress is actually California king and that the fitted-sheet dimensions match.
Pros:
- Includes a flat sheet and four pillowcases
- Fitted sheet is designed for mattresses 18–24 inches deep
- Double-brushed microfiber is described as soft
- Machine washable and designed to resist common wear issues
Cons:
- California king sizing is not the standard split king configuration
- Includes one fitted sheet rather than two separate split king sheets
Verdict: This is a possible pick for a deep California king, but skip it for a standard split king unless your mattress measurements specifically match.
4. Kickoff Home Bamboo Viscose Set: Best Bamboo Option
Kickoff Home’s set is designed for a standard split king and includes two fitted sheets, one flat sheet, and two pillowcases. The fitted sheets measure 39 by 80 inches and are listed with a 19-inch pocket depth. The set is made from 100% viscose from bamboo with a sateen weave, making it the clear choice among these picks for shoppers seeking that fabric type.
The product description highlights a wide flat sheet, elastic around the fitted-sheet edges, and corner straps intended to help keep the sheets in place. It also lists a hidden pillowcase zipper and OEKO-TEX certification. The fitted-sheet depth gives this set more room than options listed for mattresses up to 16 inches, but measure your mattress before relying on that extra capacity.
This set has fewer pillowcases than the CGK Unlimited bundle, so check whether two are enough for your bed. Viscose from bamboo also differs from microfiber in feel and care expectations; follow the item’s care label rather than assuming it can be treated like any other sheet. The product description states that the set is machine washable.
Pros:
- Two fitted sheets sized for a standard split king
- 100% viscose from bamboo with a sateen weave
- Fitted sheets are listed for mattresses up to 19 inches deep
- Includes corner straps, a wide flat sheet, and OEKO-TEX certification
Cons:
- Includes two pillowcases, compared with four in the CGK set
- Shoppers who prefer microfiber may want a different fabric
Verdict: Pick this set if you want bamboo viscose and a deeper stated pocket than the microfiber options, and two pillowcases meet your needs.
How to Choose Sheets for a Split King Mattress
Confirm whether your bed is a standard split king or split-top king
A standard split king uses two separate mattress sections, so the usual sheet set has two fitted sheets and one shared flat sheet. A split-top or flex-head king has a split near the head of the mattress instead. It calls for bedding designed around that layout. Check your mattress setup before ordering: the Horbaunal sheet is for a split-top king, while the CGK Unlimited and Kickoff Home sets are configured with two fitted sheets for a standard split king.
Measure mattress length, width, and depth
Compare your mattress measurements with the listed fitted-sheet dimensions and pocket depth. The options here list pockets for mattresses up to around 16 inches, 19 inches, or 18–24 inches, depending on the product. A deeper pocket does not make an incorrectly sized sheet suitable: the Hearth & Harbor fitted sheet is California king size, for example, rather than two separate split king sheets.
Check what the set includes
Bundles vary. CGK Unlimited includes four pillowcases, while Kickoff Home includes two. Horbaunal is a single fitted sheet, and the California king set includes one fitted sheet, one flat sheet, and four pillowcases. Think about what you already own and whether you want a complete bed set or just a replacement fitted sheet.
Choose fabric for your preferences
The CGK Unlimited and Horbaunal options use microfiber, while Kickoff Home is made from viscose from bamboo. These fabrics have different feels, so consider which one you prefer rather than relying on broad claims about softness or cooling. The product descriptions characterize the microfiber options as breathable and the bamboo viscose set as light and breathable; fabric feel can still be a personal preference.
Consider movement and sheet security
Adjustable beds move, so a snug fit can matter when the mattress changes position. Kickoff Home lists corner straps along with elastic around the fitted sheet. Horbaunal is designed for a split-top adjustable bed and lists deep pockets. Check that the product is intended for your particular bed style, and do not treat a split-top fitted sheet as a substitute for two standard split king fitted sheets.
Review care instructions and certifications
Follow the specific product’s washing and drying directions. Horbaunal lists cold-water machine washing and low-heat tumble drying, while the other descriptions also state that the sheets are machine washable. If manufacturing standards matter to you, CGK Unlimited lists OEKO-TEX MADE IN GREEN certification and Kickoff Home lists OEKO-TEX certification. These are product details to weigh alongside fit and fabric, not replacements for checking your mattress size.
Frequently Asked Questions
What is included in a standard split king sheet set?
A typical set has two fitted sheets, one for each mattress section, plus a shared flat sheet. Pillowcases may be included, but the number varies. In this selection, CGK Unlimited includes four pillowcases and Kickoff Home includes two.
Are split king and split-top king sheets interchangeable?
No. A standard split king set is made for two separate mattress sections. A split-top king sheet is designed for a king mattress that splits near the head. Check the product’s stated configuration and your bed’s design before purchasing.
How deep should split king fitted sheets be?
Choose a pocket depth that is at least suitable for your mattress thickness, including any topper you use. The products here list different limits, from around 16 inches to 19 inches, while the California king set lists 18–24 inches but is not a standard split king fit.
Can I use a California king fitted sheet on a split king bed?
Do not assume it will fit. The California king set featured here includes one 72-by-84-inch fitted sheet, while a standard split king set needs two separate fitted sheets. Compare your exact mattress layout and measurements before buying.
Is microfiber or bamboo viscose better for split king sheets?
Neither is the right choice for everyone. Microfiber is available in the CGK Unlimited and Horbaunal options, while Kickoff Home uses viscose from bamboo. Consider the feel you prefer, the set contents, and the mattress fit rather than choosing by fabric name alone.
Do adjustable beds need special sheets?
They need sheets that fit the mattress layout and stay secure as the bed moves. Some standard split king sets have two fitted sheets, while split-top beds need a sheet designed for their specific split. Pocket depth and any listed securing features are also worth checking.
Final Recommendation
For most shoppers with a standard split king, the CGK Unlimited set is the most straightforward choice because it includes two fitted sheets, a shared flat sheet, and four pillowcases. Choose Kickoff Home if you specifically want viscose from bamboo or need the deeper listed pocket. If you have a split-top king, consider the Horbaunal fitted sheet only after confirming its dimensions suit your bed. The Hearth & Harbor set is intended for California king mattresses, so it is not the right default pick for a standard split king.