10 Best Split King Sheets For Sleep Number Bed 2026 in the United States

The Bella Coterie Luxury Bamboo Viscose Split Top King Sheet Set is well-suited for Sleep Number and adjustable beds, especially if you want a comfortable, cooling sleep experience. Made from 100% bamboo viscose, these sheets feel silky soft and are naturally moisture-wicking and hypoallergenic, which helps keep you cool in warmer months and cozy when it's cooler. With a solid 400 thread count and a sateen weave, the fabric has a smooth, luxurious texture that tends to get softer with each wash. The 18-inch deep pockets mean the fitted sheet will easily accommodate thicker mattresses, including plush pillow tops often used in Sleep Number beds.

Caring for these sheets is easy—they are machine washable and can be tumble dried on low. They also carry an OEKO-TEX 100 certification, assuring they are free from harmful chemicals, which is great for sensitive skin. The set includes a fitted sheet, flat sheet, and two pillowcases with an envelope closure, all in a stylish coastal blue. Bamboo viscose can sometimes wrinkle more easily than cotton, and while the sheets are praised for softness, bamboo fibers may require gentle care to maintain longevity.

If you prioritize softness, cooling comfort, and a good fit for a split king adjustable bed, this set represents a strong choice.

The CGK Unlimited Split King 7 Piece Sheet Set offers a thoughtful combination of comfort and practicality for those with split king mattresses. Made from high-quality double brushed microfiber, these sheets feel very soft and silky—some users find them even softer than Egyptian or organic cotton at a much more affordable price. With a thread count of 200, they provide decent durability and smoothness without being heavy. The fitted sheets have deep pockets up to 16 inches, which means they can easily accommodate most modern mattresses including those with thicker profiles, ensuring a snug fit without slipping. The set includes everything you need: one flat sheet, two fitted sheets, and four pillowcases, making it ideal for split king beds that require separate sheets on each side.

Breathability and temperature regulation are good thanks to the lightweight microfiber; these sheets tend to stay cool and comfortable throughout the night, which is great if you’re prone to overheating. They are also wrinkle resistant and easy to care for, as they are machine washable and maintain their softness wash after wash. On the downside, microfiber can sometimes feel less natural than cotton and may not have the same moisture-wicking ability, which might be a consideration for hot sleepers who prefer natural fibers. Also, while the 200 thread count is sufficient, it’s lower than some premium cotton sheets, so the feel might not suit those looking for ultra-luxurious thickness.

This sheet set represents an excellent choice for anyone wanting a soft, easy-care, and well-fitting bedding option for split king beds, especially if budget and ease of maintenance are priorities.

The Bare Home Split Head Flex King Sheet Set is designed with ultra-soft microfiber material that ensures a comfortable sleep experience. The hydro-brushed fabric is lightweight and breathable, making it suitable for both warm and cold seasons. With a high thread count of 1800, the sheets offer a luxurious feel that many users will appreciate.

The set includes four pieces: a flat sheet, a split head flex king fitted sheet, and two pillowcases, which should cover all your bedding needs. The sheets feature all-around elastic, which helps them stay securely in place on the mattress, even with deep pockets up to 15 inches. This is particularly beneficial for a Sleep Number bed, ensuring a snug fit throughout the night. They are also easy to care for, as they can be machine washed on a gentle cycle and tumble dried on low, resisting wrinkles, stains, and fading.

An additional advantage is their OEKO-TEX STANDARD 100 certification, meaning they are tested against harmful substances, making them a safer choice for you and your family. However, while the microfiber material is durable and easy to maintain, it may not match the breathability and natural feel of cotton sheets for some users. Also, those who prefer heavier sheets might find these a bit too light. Despite these minor drawbacks, the Bare Home Split Head Flex King Sheet Set stands out for its combination of softness, durability, and ease of use, making it a solid option for anyone with a Sleep Number bed.