SGI bedding 36in King Split Top Flex Head Sheet Set - 600 TC Cotton

Our review of the SGI bedding 36in King Split Top Flex Head Sheet set finds it best for couples who sleep on adjustable split-top beds and want a traditional cotton feel with deep pockets. The single biggest reason to buy is the tailored 36in top split on the fitted sheet that lets each side of a flex head or Sleep Number-style bed move independently while keeping the sheet anchored with elastic around the entire perimeter. The set balances a soft, cooled cotton surface with construction meant for repeated use on adjustable frames.

Key Features

• Split top fit: The fitted sheet is split 36in from the top so each side of a top-split adjustable bed can flex independently without pulling the fabric out of place.
• 600 thread count Egyptian cotton: Woven from long staple yarns for a noticeable softness that tends to soften further with washing.
• Deep pockets and full elastic: A fully elasticized perimeter and 15in depth give a secure, snug fit on thick mattresses and Sleep Number-style bases.
• Complete 4-piece set: Includes one split-top king fitted sheet 78in x 80in, one king flat 108in x 102in and two king pillowcases 20in x 40in for a coordinated bed setup.
• Bio-polished finish: The finishing process delivers a smoother surface and a cooling hand that reduces initial surface friction against the skin.
• Easy care: Machine wash warm and tumble dry low with guidance to remove before fully dry to preserve seams and fabric life.

Who It's For

This sheet set is aimed at owners of split-top adjustable beds, including those who use split king or flex-top king configurations and need a fitted sheet that allows independent head adjustments. It is also a good pick for shoppers who prefer natural cotton with a higher thread count for a softer, cooler feel and who value deep pockets for thicker mattresses.

Shoppers who prefer sateen sheen, very plush microfibers, or exclusively chemical-free processing may want to compare other constructions; likewise, those who demand a very plush, velvety hand right out of the package should expect the cotton to soften over a few washes rather than arrive ultra-plush.

Pros & Cons

Pros

• Thoughtful split-top design keeps each side functional on adjustable beds while maintaining fit.
• High thread count and long staple yarns give a comfortable, cooling cotton surface that improves with washing.
• Deep 15in pockets and fully elasticized edge provide a secure fit on thick mattresses.
• Complete set includes matching flat sheet and two king pillowcases for a consistent look.

Cons

• Some users report mixed comfort and occasional seam issues after heavy machine washing, so careful laundering is recommended.
• The cotton hand softens over time rather than feeling ultra-plush immediately for those expecting a velvety finish.

Specifications

Brand	SGI bedding
Fitted sheet size	King split 78in x 80in, split 36in from top
Flat sheet size	King 108in x 102in
Pillowcase size	King 20in x 40in (2 included)
Material	100% Egyptian cotton, long staple yarns
Thread count	600
Pocket depth	15in

Our Verdict

The SGI bedding split-top king sheet set is a practical choice for adjustable bed owners who want a well-fitting cotton set that works with independent head adjustments. It offers strong value through thoughtful split construction, a 600 thread count cotton weave that softens over time, and deep pockets for secure fit; buyers should follow the care guidance to protect seams and preserve longevity.

Frequently Asked Questions

Will this fitted sheet work with a split king adjustable bed?
Yes, the fitted sheet is cut with a 36in split at the head specifically to accommodate split-top adjustable and split king beds.

What does the set include?
The 4-piece set contains one split-top king fitted sheet 78in x 80in, one king flat sheet 108in x 102in, and two king pillowcases 20in x 40in.

How should I wash these sheets to keep them durable?
Machine wash warm, tumble dry low and remove before fully dry; avoid bleach and use medium dryer settings to protect seams and fabric.