King (17-20 in) SureGuard Mattress Encasement - Waterproof, Bed Bug

In this review of the King (17-20 in) SureGuard Mattress Encasement the bottom line is simple: this is a practical, long-lasting solution for anyone who needs full, six-sided mattress protection without changing the feel of the bed. It is aimed at households wanting a mattress that stays clean from spills, perspiration, dust and bed bugs; the most persuasive reason to buy is the combination of a 100% waterproof barrier with a soft 100% cotton terry top that remains quiet and comfortable. The product also carries a 10-year quality guarantee and independent GREENGUARD Gold certification, which adds confidence for allergy-sensitive buyers.

Key Features

• 100% Waterproof: The six-sided construction stops perspiration, bed wetting and liquids from reaching the mattress for long-term stain protection.
• Bed Bug Proof Zipper: Invisi-Zip and SureSeal technology provide a super fine zipper closure that fully seals the mattress against bed bugs when used with a box spring encasement.
• Soft Cotton Terry Top: A 100% cotton terry surface wicks away moisture and keeps the original mattress feel without noisy vinyl or PVC.
• Hypoallergenic Barrier: Blocks dust, dirt and dander on all sides, helping maintain a cleaner sleep surface for allergy-prone sleepers.
• Durable and Certified: Independently lab tested and GREENGUARD Gold certified, plus backed by a 10-year quality guarantee for long-term use.
• Machine Washable: The zippered encasement is designed to be machine washed and dried for routine care and hygiene.

Who It's For

This encasement is best for homeowners, families with young children, pet owners and allergy sufferers who want complete, six-sided protection while retaining mattress comfort. It is especially suited to those who prefer natural-feeling surfaces because of the 100% cotton terry top and no vinyl or phthalates in the construction.

Shoppers who need an extra layer for frequent nighttime accidents should consider pairing this encasement with a fitted SureGuard mattress protector for easier clean-ups. Those who require ultra-heavy industrial waterproofing or expect repeated heavy liquid immersion may want a different heavy-duty model.

Pros & Cons

Pros

• Provides full six-sided, 100% waterproof protection while preserving mattress feel.
• Bed bug proof zipper system seals the mattress when used with a compatible box spring encasement.
• Soft, quiet 100% cotton terry top that wicks moisture and is free from vinyl and PVC.
• GREENGUARD Gold certification and a 10-year quality guarantee add long-term assurance.

Cons

• Some customers report mixed experiences with zipper reliability, so inspect the closure on delivery.
• For very frequent accidents, an additional fitted protector is recommended for easier washing.

Specifications

Our Verdict

The King SureGuard Mattress Encasement is a sensible buy for anyone who wants comprehensive mattress protection without losing comfort. It combines a quiet, natural-feeling cotton surface with six-sided, bed bug proof and waterproof protection and a decade-long guarantee, making it a good value for most homes; inspect the zipper and consider an extra fitted protector if spills are frequent.

Frequently Asked Questions

Is this encasement noisy like vinyl covers?
No, the 100% cotton terry top keeps the cover soft and noiseless compared with vinyl or PVC alternatives.

Will it fit deep mattresses?
Yes, this King encasement is designed to fit mattresses 17 to 20 in deep.

Can it be machine washed?
Yes, the zippered encasement is machine washable and dryer safe for routine cleaning.