Jersey Knitted Full XL Zippered Mattress Encasement - Waterproof

In this review of the Guardmax Jersey Knitted Full XL Zippered Mattress Encasement the bottom line is simple: this is for sleepers who want full, reliable protection without the crinkly, plastic feel of many encasements. It is built to fully seal a 54 x 80 x 12 mattress and stretches to fit depths up to 13 in, combining a TPU laminate waterproof barrier with a soft jersey knitted polyester outer so the user gets both waterproof protection and a comfortable, quiet sleeping surface. The enclosure-style zipper and EPA-registered manufacturing are central to its claim of bed bug proofing.

Key Features

• Full encasement fit: Designed for Full XL mattresses 54 x 80 x 12 and stretches to accommodate depths up to 13 in for a secure fit.
• Jersey knitted comfort: The outer jersey knitted polyester provides a soft, breathable surface that avoids the plastic noise of some waterproof covers.
• 100% waterproof membrane: A TPU laminate prevents liquids from penetrating the mattress, protecting against spills and accidents.
• Zippered, sealed design: A durable nylon coil zipper creates a full encasement that seals the mattress for insect and allergen protection.
• Hypoallergenic protection: The cover blocks dust, dirt, and dander, helping reduce nighttime allergy triggers for sensitive sleepers.
• Easy care: The encasement slips on and off easily and can be handwashed or machine-washed on a quick cycle.

Who It's For

This encasement is for anyone who needs complete mattress protection and prefers a soft, textile feel rather than a plasticky topper. It suits parents protecting mattresses from spills, people who want allergen and dust mite barriers, and those specifically seeking an encasement with a full zipper for bed bug prevention.

It is less appropriate for shoppers who want a plush mattress pad or added cushioning, since this product focuses on protection and a smooth sleeping surface. Also, if a homeowner prefers non-encasement, fitted-pad protectors (not full zip) they should look elsewhere.

Pros & Cons

Pros

• Soft jersey surface that feels hotel-like and stays quiet through the night.
• Complete zippered encasement design provides strong protection against spills and pests.
• Stretches to fit up to 13 in depth, so deeper mattresses are accommodated.
• Hypoallergenic barrier helps reduce exposure to dust mites and dander.

Cons

• Some users report mixed impressions of waterproof performance in real-world accidents, so very heavy or prolonged exposure may be a concern.
• Installing or removing an encasement may require two people for heavier mattresses.

Specifications

Product type	Full XL zippered mattress encasement
Fit dimensions	54 x 80 x 12 in (stretches to 13 in depth)
Outer fabric	Jersey knitted polyester
Waterproof membrane	TPU laminate
Zipper	Nylon coil full encasement zipper
Protection	Waterproof, bed bug proof, dust mite and hypoallergenic
Care	Handwash or quick machine wash

Our Verdict

The Guardmax Jersey Knitted Full XL Zippered Mattress Encasement is a practical choice for anyone who needs full mattress protection while retaining a comfortable, quiet sleep surface. Its TPU laminate and full zipper deliver strong protective benefits and the jersey finish keeps nights comfortable, making it good value for households protecting mattresses from spills, allergens, or pests.

Frequently Asked Questions

Will this fit a mattress thicker than 12 in?
The encasement stretches to fit mattresses up to 13 in deep, so it will accommodate slightly thicker mattresses within that limit.

Is the cover noisy like vinyl protectors?
No; the jersey knitted polyester outer is made to be soft and breathable, which keeps the surface quiet compared with plastic covers.

Can I machine wash the encasement?
Yes; the product can be handwashed or put on a quick machine wash cycle for easy cleaning.