Guardmax Jersey Knitted King Zippered Mattress Encasement

In this review of the Guardmax Jersey Knitted King Zippered Mattress Encasement the bottom line is simple: it combines full encasement protection with a soft, breathable surface so sleepers do not feel like they are on a plastic cover. The product is aimed at anyone who wants complete liquid and pest protection for a king mattress 78 x 80 x 12 while retaining a quiet, hotel-like sleeping surface. The single biggest reason to buy is the combination of a TPU laminate waterproof barrier plus a jersey knitted polyester outer that keeps the protector both fully waterproof and comfortable.

Key Features

• Jersey knitted fabric: The soft polyester knit creates a quiet, breathable surface that feels like bed linen rather than a plastic sheet.
• 100% waterproof: A TPU laminate membrane blocks liquids so spills or accidents do not penetrate the mattress core.
• Bed bug proof: A full encasement with a durable nylon coil zipper is designed to seal the mattress and prevent bed bugs from entering or escaping.
• Zippered design: The nylon coil zipper is built for durability and smooth operation so the cover can be sealed or removed without snagging.
• Hypoallergenic protection: The encasement keeps out dust, dirt, and dander to reduce nighttime allergy triggers.
• Easy care: The cover slips on and off easily for washing, and can be handwashed or machine washed on a quick load.

Who It's For

The Guardmax encasement is best for people who need full mattress protection and prefer a soft, fabric feel rather than a noisy vinyl surface. It suits families dealing with spills or pet accidents, allergy sufferers who need a dust mite barrier, and anyone concerned about bed bugs who wants the reassurance of a sealed zippered encasement.

It may not be the ideal choice for someone seeking a fitted sheet style protector only (this is a full zip encasement that fully encloses the mattress) or for those who require exceptionally heavy-duty industrial mattress covers beyond home use. Also, very deep mattresses over 13 in will not fit this model.

Pros & Cons

Pros

• Soft, jersey knitted surface that is quiet and comfortable against sheets and skin.
• Complete waterproof protection from the TPU laminate stops liquid penetration.
• Full encasement with a sturdy nylon coil zipper offers bed bug and allergen protection.
• Easy to install and remove for washing, and stretches to fit mattresses up to 13 in deep.

Cons

• Some shoppers report mixed experiences with perceived waterproof performance, so results can vary by use and care.
• The zippered encasement requires lifting the mattress to install, which can need two people for heavier beds.

Specifications

Product type	Zippered mattress encasement
Material	Jersey knitted polyester with TPU laminate
Size	King 78 x 80 in
Maximum depth	Fits up to 13 in mattress depth
Waterproof	100% waterproof TPU membrane
Zipper	Nylon coil zippered encasement
Protection	Bed bug proof, dust mite and hypoallergenic barrier

Our Verdict

The Guardmax Jersey Knitted King Zippered Mattress Encasement is a practical choice for sleepers who need reliable liquid and pest protection without sacrificing comfort. Its soft, breathable knit and full encasement zipper deliver strong value for families, allergy sufferers, and anyone protecting a king mattress up to 13 in deep. While a few users report mixed impressions about waterproofing in specific incidents, the combination of TPU laminate and quality zipper construction makes this a sensible long-term protector for home use.

Frequently Asked Questions

Will this fit a 12 in king mattress?
Yes. The encasement is sized for a king 78 x 80 in and stretches to fit mattresses up to 13 in deep, so a 12 in mattress will fit.

Is the cover noisy like vinyl protectors?
No. The jersey knitted polyester outer is designed to be soft and quiet so it does not produce the crinkly noise of plastic covers.

Can I machine wash this encasement?
Yes. It can be handwashed or washed on a quick machine cycle; remove and dry according to care instructions to maintain the TPU membrane and zipper performance.