Top Split King Sheet Set 100% Egyptian Cotton Black - Flex Head

In this review the Cottingon Top Split King sheet set is judged for sleepers who own adjustable or Sleep Number style beds and need a fitted sheet that actually moves with the mattress. The bottom line: the set earns praise because of its split-top design and 360 elastic that keeps each side secure when the head section flexes. Reviewers consistently note a soft, breathable feel straight away that improves after a couple washes, making it a practical choice for couples with independent mattress adjustments.

Key Features

• Material: Made from OEKO-TEX certified 100% extra long staple Egyptian cotton for a soft, breathable surface that helps regulate temperature during sleep.
• Split-top design: The half split 34 in flex head fitted sheet allows each side of an adjustable top to move independently without pulling the other side.
• Full 360 elastic: Extra wide elastic surrounds the fitted sheet to hold a mattress up to 16 in deep securely in place through nightly adjustments.
• Complete set: Includes two pillowcases 20 in x 40 in and a large flat sheet 102 in x 108 in for full coverage on a split king configuration.
• Durability and care: Machine wash cold or luke warm and tumble dry low; cotton softens with washing so the fabric becomes silkier after a few cycles.

Who It's For

The Cottingon split top king set is best for couples using adjustable beds, Sleep Number style mattresses, or any flex-top king where each side must move independently. It fits mattresses up to 16 in deep and is suitable for those who prefer natural cotton and a breathable, soft hand.

Shoppers who want high-thread-count marketing claims or luxury finishing details beyond quality cotton may want to compare premium sateen or percale offerings. If an exact fitted sheet for a non-split standard king is needed, a conventional king set without a split-top would be simpler.

Pros & Cons

Pros

• Fits adjustable split king beds very well thanks to the 34 in half split and full 360 elastic.
• Soft, breathable 100% Egyptian cotton that becomes softer after washing.
• Complete 4 piece set provides pillowcases and an oversize flat sheet for full coverage.

Cons

• Fabric feel has mixed comments from customers-some find it luxurious while others report a different initial texture.

Specifications

Our Verdict

The Cottingon Top Split King sheet set is a practical, value-minded choice for owners of adjustable and Sleep Number style beds who need reliable split-top performance and natural cotton comfort. Its 360 elastic and tailored split make it a good fit for flex head king mattresses, and the OEKO-TEX certified Egyptian cotton provides breathable softness that improves with washing.

Frequently Asked Questions

Will this fit my adjustable split king mattress?
Yes, the 34 in half split fitted sheet and full 360 elastic are designed to fit split king and flex head style adjustable mattresses up to 16 in deep.

What is the fabric made from?
The set is woven from 100% extra long staple Egyptian cotton and is OEKO-TEX certified for safety and low chemical content.

How should I care for these sheets?
Machine wash in cold or luke warm water, tumble dry low, do not bleach, and iron if needed; the cotton softens after a few washes.