Extra Deep Pocket King Size Sheets 21 Deep Pocket - Oversized Fit

Our review of these Extra Deep Pocket King Size Sheets finds them best for sleepers who need a true 21' deep pocket fit and prefer low-maintenance, soft bedding. The single biggest reason to buy is the combination of a real 21' fitted sheet and an oversized flat sheet that actually covers high-profile mattresses, so the set stays neat through the night. The material is 100% ultra soft microfiber, and the two zipper-closure pillowcases add a tidy finishing touch that many will appreciate.

Key Features

• 21' Deep Pocket Fitted Sheet: Fits mattresses from about 18 to 23' deep so high-profile pillow-top or mattress-plus-topper configurations stay secure.
• Super Oversized Flat Sheet: The flat sheet measures W 122 x L 110 and is designed to hang over more than 23' on each side for full coverage of tall mattresses.
• Ultra Soft Microfiber: The 100% microfiber construction provides a consistently soft, cozy feel that many customers describe as comfortable for sleep.
• Zippered Pillowcases: Two 20 x 40' pillowcases use hidden zippers to keep pillows enclosed for a neater look and fewer loose edges.
• Easy Care: Machine washable and tumble dry low with wrinkle resistance so the set is low effort to maintain.

Who It's For

This set is ideal for owners of high-profile king mattresses, including pillow-top and thick foam beds, who need genuine extra fabric in both the fitted and flat sheets. Buyers who value a soft feel and fuss-free washing will also appreciate the microfiber construction and wrinkle-resistant finish.

It may be less suitable for people who prefer natural fibers like cotton or linen, or for those who want a very fitted, tight hospital-style sheet rather than the slightly generous drape of an oversized flat sheet. Shoppers who dislike zipper closures on pillowcases should note that the set uses zippers rather than flap closures.

Pros & Cons

Pros

• Real 21' deep pockets that accommodate mattresses up to 23' and hold well through the night.
• Generous flat sheet dimensions that cover high-profile beds without continual tucking.
• Soft 100% microfiber feels cozy and resists wrinkles and fading with normal care.
• Zipper closure pillowcases offer a tidy, secure finish for pillows.

Cons

• The oversized flat sheet may be wider than some prefer, producing extra fabric at the sides.
• A small number of customers report zipper issues on pillowcases, so treat closures gently.

Specifications

Our Verdict

This sheet set is a smart buy for anyone with a tall or layered mattress who wants a soft, low-maintenance cover that stays in place. The true 21' fitted sheet and the super oversized flat sheet deliver practical coverage, and the microfiber fabric keeps care simple. While the flat sheet may be too generous for some tastes and zippers require gentle handling, overall it offers strong value for heavier mattresses and those prioritizing fit and comfort.

Frequently Asked Questions

Will the fitted sheet fit a 22' mattress?
Yes, the 21' fitted sheet is designed to fit mattresses up to about 23' deep, so a 22' mattress should fit securely.

Are the pillowcases truly zippered?
Yes, the two pillowcases include hidden zipper closures meant to keep pillows enclosed for a neater appearance.

How should I wash these sheets?
Machine wash and tumble dry low; the microfiber is wrinkle resistant and does not require ironing.