Extra Deep Split King Sheet Set - 7 Piece Breathable Cooling Set

In this review the Extra Deep Split King Sheet Set is evaluated for sleepers who own very tall or heavily topped mattresses and need sheets that actually stay on. The bottom line: this 7 piece set is best for people with deep pockets and pillow top or memory foam toppers because the fitted sheets are designed to stretch and fit mattress pockets from 18 to 24 in deep, so the single biggest reason to buy is the reliable fit on oversized mattresses combined with a soft, breathable microfiber feel.

Key Features

• Extra deep pockets: The fitted sheets are made to fit mattresses with pockets of 18, 20, 21, 22 and 24 in, so they won't pop off tall or layered beds.
• Stretchable elastic: Elastic runs around the extra deep fitted sheet to provide a snug, secure fit that holds the corners even on thick mattress toppers.
• Complete 7 piece set: Includes a flat sheet, split fitted sheets and four oversized pillowcases with secure enclosures, giving full coverage for a split king arrangement.
• Soft microfiber: The material is a very soft microfiber with a light, comfortable hand that feels softer than many cotton sheets.
• Great with toppers: Designed to work with 3 in and 4 in pillow tops, memory foam toppers and large mattress pads without slipping.

Who It's For

This set is for owners of split king beds or adjustable bases who use deep mattresses, pillow tops or significant toppers and need fitted sheets that reach down and stay put. It is also suited for anyone who prefers a soft, lightweight microfiber feel rather than the crisper touch of cotton.

Those who prefer the cool crispness of percale cotton or who need temperature-regulating natural fibers may want to look elsewhere, but shoppers seeking deep pocket performance and easy care will find this set a practical choice.

Pros & Cons

Pros

• Very deep fitted pockets and stretchable elastic keep sheets secure on tall mattresses and toppers.
• Soft microfiber feels plush and comfortable, often described as softer than cotton.
• Seven-piece configuration includes four pillowcases with secure enclosures for full coverage.
• Good value for people who need oversized sheet fit without frequent adjustments during the night.

Cons

• Microfiber has a different hand than cotton and is lighter rather than crisp, which may not suit those expecting a cotton-like texture.
• Color choices and weave details are not detailed here, so shoppers who want a very specific finish may need to inspect in person.

Specifications

Set pieces	7 piece sheet set (split king)
Fitted sheet size	39 in x 80 in with 21 in pockets (elasticized)
Flat sheet size	113 in wide x 102 in long
Pillowcase size	Oversized 20 in x 40 in, four pillowcases included
Material	Soft microfiber
Intended mattress depth	Fits pockets 18 in to 24 in deep

Our Verdict

This Extra Deep Split King Sheet Set is a practical, value-oriented option for anyone with a tall mattress, pillow top or memory foam topper who needs sheets that actually fit and stay on. The soft microfiber hand and full seven-piece configuration make it a solid choice for comfort and convenience, especially when reliable deep-pocket fit is the priority.

Frequently Asked Questions

Will these fit a 22 in deep mattress?
Yes, the fitted sheets are designed to accommodate mattress pockets from 18 in up to 24 in deep.

Are the pillowcases enclosed?
Yes, the set includes four oversized pillowcases that feature secure enclosure designs.

Is the material like cotton?
The sheets are microfiber and have a very soft, lightweight feel; they are not the crisp hand of cotton but are softer than typical cotton to most users.