Guardmax Jersey Knitted RV Zippered Mattress Encasement - Waterproof

In this review of the Guardmax Jersey Knitted RV Size Zippered Mattress Encasement the bottom line is simple: it is for RV owners and anyone with a 48 x 75 x 10 mattress who wants full waterproof and bed bug protection without sacrificing comfort. The single biggest reason to buy is protection that feels like bedding rather than industrial plastic; the jersey knit top keeps the surface soft and quiet while a TPU laminate and a nylon coil zipper seal out liquids and pests. This reviewer found it especially valuable where a noiseless, full encasement is required.

Key Features

• Size & depth: Fits a 48 x 75 x 10 RV mattress and stretches to secure mattresses up to 11 in deep for a snug, full encasement fit.
• Jersey knitted comfort: The polyester jersey knit top provides a soft, hotel-like feel and stays quiet so the protector does not crinkle during sleep.
• 100% waterproof: A TPU laminate membrane prevents any spilled drink or bodily fluid from reaching the mattress, protecting the interior from stains and odors.
• Bed bug proof: The full zippered, nylon coil encasement is manufactured in an EPA registered facility and is designed to block bed bugs from entering or escaping the mattress.
• Durable zipper: A heavy-duty nylon coil zipper is used to seal the encasement and is intended to reduce snags and breakage compared with cheaper designs.

Who It's For

This encasement is best for RV owners, seasonal travelers, or anyone with a mattress sized 48 x 75 x 10 seeking complete waterproofing and pest defense without a noisy plastic surface. It is also a good fit for households that want a soft, knitted feel rather than a vinyl-like protector.

Shoppers who need a fitted, thin protector rather than a full encasement should look elsewhere, and those wanting an ultra-heavy-duty industrial zipper may prefer an alternative if they are concerned about mixed zipper feedback reported by some users.

Pros & Cons

Pros

• Soft, jersey knit top gives a quiet and comfortable sleeping surface similar to hotel bedding.
• Fully waterproof TPU laminate stops liquids from reaching the mattress for effective spill protection.
• Complete bed bug protection when zipped, thanks to full encasement design and EPA-registered manufacturing.
• Stretches to fit up to an 11 in depth, making it suitable for some extra-thick mattresses.

Cons

• Zipper quality receives mixed feedback; while many report smooth operation, a minority have experienced breakage.
• As a full encasement, it may be more effort to remove and reinstall than a simple fitted protector.

Specifications

Brand	Guardmax
Fit size	RV Size 48 x 75 x 10 in
Maximum depth	Fits up to 11 in
Material (top)	Jersey knitted polyester
Waterproof layer	TPU laminate membrane
Closure	Nylon coil zipper full encasement
Protection	Waterproof, bed bug proof, dust mite barrier

Our Verdict

The Guardmax Jersey Knitted RV Zippered Mattress Encasement is recommended for RV owners and anyone needing reliable waterproofing and bed bug defense while retaining a soft, noiseless surface. It represents good value when full encasement protection and comfort are priorities, though buyers should be aware of some mixed reports about zipper longevity.

Frequently Asked Questions

Will this fit an 11 in deep mattress?
Yes, the encasement stretches to accommodate mattresses up to 11 in deep.

Is the surface noisy like plastic?
No, the jersey knitted polyester top is soft and quiet and does not create the crinkling noise of vinyl covers.

Does it stop bed bugs?
Yes, it is a full zippered encasement designed to block bed bugs and is produced in an EPA registered facility.