Adjustable Bed Sheets
Best Split King Fitted Sheets for Adjustable Beds
7 picks compared
6 min read
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The short answerThe best fitted sheets for split king adjustable beds are the Mellanni Split King, the Brooklyn Bedding Deep Pocket, and the Southshore Fine Linens. They offer deep pockets, stretchy fabric, and secure fit.
?How we pickedWe compare published specifications, safety certifications and thousands of verified owner reviews, and we do not physically test every unit. Read the full process in our review methodology.
Mellanni Split King Fitted Sheet
★★★★★ 4.6 / 5 Best Overall
The Mellanni split king fitted sheet is made from brushed microfiber that stretches with the adjustable base. It has deep pockets that fit mattresses up to 16 inches. Owners report it stays put even with frequent head and foot adjustments.
Material Brushed microfiberPocket Depth 16 inchesThread Count Not specifiedCare Machine washable
- Excellent stretch
- Deep pockets
- Soft and breathable
- May pill over time
- Limited color options
Brooklyn Bedding Deep Pocket Split King Sheet
★★★★★ 4.5 / 5 Best for Thick Mattresses
The Brooklyn Bedding sheet has a pocket depth of 18 inches, making it ideal for thick mattresses with toppers. The elastic goes all the way around the hem for a secure fit. It is made from a cotton-polyester blend that is both soft and durable.
Material Cotton-polyester blendPocket Depth 18 inchesElastic All-aroundCare Machine washable
- Very deep pockets
- All-around elastic
- Durable fabric
- May feel less stretchy
- Higher price
Best for: Best for Thick Mattresses
Southshore Fine Linens Split King Sheet Set
★★★★★ 4.4 / 5 Best Value
The Southshore Fine Linens set includes two fitted sheets, two flat sheets, and four pillowcases. The fitted sheets have deep pockets and a strong elastic band. It is a budget-friendly option that does not compromise on fit.
Material MicrofiberPocket Depth 15 inchesIncludes 2 fitted, 2 flat, 4 pillowcasesCare Machine washable
- Complete set
- Good pocket depth
- Soft microfiber
- May generate static
- Colors may fade
Utopia Bedding Split King Fitted Sheet
★★★★★ 4.3 / 5 Best Budget
The Utopia Bedding fitted sheet is one of the most affordable options. It has a 14-inch pocket depth and a 360-degree elastic band. It is made from brushed microfiber that is soft and wrinkle-resistant.
Material Brushed microfiberPocket Depth 14 inchesElastic 360-degreeCare Machine washable
- Very affordable
- Full elastic band
- Easy care
- Shallow pockets
- May not fit very thick mattresses
Elegant Comfort Split King Fitted Sheet
★★★★★ 4.4 / 5 Best for Hot Sleepers
The Elegant Comfort sheet is made from a cooling microfiber that wicks moisture. It has deep pockets and a secure elastic band. Owners report it feels cool to the touch and stays in place.
Material Cooling microfiberPocket Depth 16 inchesMoisture Wicking YesCare Machine washable
- Cooling effect
- Deep pockets
- Breathable
- May be thinner
- Not as soft as cotton
Best for: Best for Hot Sleepers
Bedsure Split King Fitted Sheet
★★★★★ 4.5 / 5 Best for Softness
The Bedsure sheet features a double-brushed microfiber that is exceptionally soft. It has a 15-inch pocket depth and strong elastic. It is available in many colors and is easy to care for.
Material Double-brushed microfiberPocket Depth 15 inchesColors MultipleCare Machine washable
- Very soft
- Good pocket depth
- Color variety
- May not be as durable
- Can attract lint
Best for: Best for Softness
LinenSpa Split King Fitted Sheet
★★★★★ 4.2 / 5 Best for Easy Care
The LinenSpa sheet is made from a polyester microfiber that resists wrinkles and stains. It has a 15-inch pocket depth and a full elastic band. It is machine washable and dries quickly.
Material Polyester microfiberPocket Depth 15 inchesWrinkle Resistant YesCare Machine washable, quick dry
- Wrinkle-resistant
- Stain-resistant
- Quick drying
- May feel less breathable
- Limited color options
Best for: Best for Easy Care
Key criteria included pocket depth, stretch, and corner design. We also considered fabric type and ease of care.
What to Look for in a Split King Fitted Sheet
Focus on pocket depth. Split king mattresses often have adjustable bases that add height. Look for sheets with at least 15 inches of pocket depth. Also check the elastic. A full elastic band provides a better grip. Stretchy fabric, like microfiber, moves with the base. Cotton is breathable but less stretchy. Consider the thread count if you prefer cotton. Higher thread counts feel softer but may not stretch as well.
How to Measure Your Mattress for a Fitted Sheet
Measure the height of your mattress from the top to the bottom. Include any mattress topper. This measurement is your pocket depth requirement. Also measure the length and width of your split king. Standard split king dimensions are 38 inches by 80 inches per side. Compare these numbers to the sheet's specifications. If your mattress is thicker than 15 inches, choose a sheet with a deeper pocket.
Understanding Fabric Options for Adjustable Beds
Microfiber is popular for its stretch and softness. It is also wrinkle-resistant and easy to care for. Cotton is breathable and natural, but it may not stretch as much. A cotton-polyester blend offers a balance. Some sheets have cooling properties, which help hot sleepers. Consider your climate and personal comfort preferences. Check if the fabric is brushed for extra softness.
How to Keep Your Fitted Sheet on an Adjustable Bed
Use sheets with a full elastic band. This ensures the sheet stays put when the head or foot is raised. Some sheets have corner straps or clips. These can provide extra security. Make sure the sheet fits snugly. A loose sheet will slip off. You can also use sheet fasteners to hold the corners in place. Wash the sheets regularly to maintain elasticity.
Questions people ask
What is a split king adjustable bed?
A split king adjustable bed consists of two twin XL mattresses that can be adjusted independently. Each side has its own base, allowing for personalized comfort.
What size fitted sheet fits a split king adjustable bed?
You need two twin XL fitted sheets, one for each side. Each twin XL measures 38 inches by 80 inches. Ensure the pocket depth matches your mattress height.
How deep should the pockets be for a split king adjustable bed?
Most adjustable mattresses are 10 to 12 inches thick. With a topper, you may need 15 to 18 inches. Measure your mattress to be sure.
Can I use regular king sheets on a split king adjustable bed?
No, a regular king sheet is too wide for a split king. It will not fit properly and may bunch up. You need twin XL sheets for each side.
What is the best material for fitted sheets on an adjustable bed?
Microfiber is a good choice because it stretches and moves with the base. Cotton is breathable but less stretchy. A cotton-polyester blend offers a balance.
How do I keep my fitted sheet from popping off?
Choose a sheet with a deep pocket and a full elastic band. You can also use sheet clips or straps. Make sure the sheet is pulled tight and secure.
Are split king fitted sheets sold individually?
Yes, many brands sell twin XL fitted sheets individually. Some sets include two fitted sheets, which is convenient for a split king.
Can I use a mattress topper with a split king fitted sheet?
Yes, but you need a sheet with a deeper pocket to accommodate the added height. Measure the combined height of mattress and topper.
How often should I replace my fitted sheets?
It depends on the quality and care. Microfiber sheets may last a few years. Cotton sheets can last longer. Replace them when they show signs of wear or lose elasticity.
Are expensive fitted sheets worth it?
Higher-priced sheets often use better materials and construction. They may be more durable and comfortable. However, budget options can work well if they meet your needs.
The bottom lineSo which one?
Choose the Mellanni for the best overall fit and stretch. The Brooklyn Bedding is ideal for thick mattresses. For a budget-friendly option, the Southshore Fine Linens set offers great value.
