VerdictAI
#2 in Best Allergy / Bed-Bug Encasements

Guardmax Queen Mattress Encasement with Zipper, Waterproof, Bed Bug Proof, and Dust Mite Proof Mattress Protector for Queen Size…

Best for

Best bed-bug-proof

Amazon rating

★★★★★4.7(8,364)

Amazon aggregate, one input among many in the Verdict Score

Verdict scoreGreat
82/ 100

Based on 1 trusted source

Current price

$39.99

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Updated May 18, 2026 · 1 min read

Guardmax Queen Mattress Encasement with Zipper, Waterproof, Bed Bug Proof, and Dust Mite Proof Mattress Protector for Queen Size…

The consensus

What reviewers found

Synthesized across the trust-weighted source mix below.

Across the reviewers we read, Guardmax is positioned as the value-leaning alternative to the higher-priced category leaders, and nytimes.com appears in the signal set with positive language about a smooth, securely constructed encasement. Verified-purchase reviewers at walmart.com and target.com consistently call out the jersey-knit fabric as soft, quiet, and easy to install — three attributes that competitor encasements often fail. The specific selling point in the data is the zipper-and-flap construction designed to seal the encasement against bed bug entry, paired with stretch to roughly 15–16 inches of mattress depth.

What reviewers liked

  • nytimes.com appears in the signal set with positive language about construction
  • 4.7-star Amazon average across roughly 8,400 reviews
  • Jersey-knit face praised as soft and noiseless at walmart.com and target.com
  • Zipper-and-flap design specifically engineered for bed bug containment
  • Stretches to fit up to roughly 16 inches of mattress depth

Where it falls short

  • Like all waterproof encasements, traps heat — flagged repeatedly in r/Mattress
  • r/Bedbugs warns that no encasement on its own will eliminate an active infestation
  • Some retailer reviewers report the zipper pull feeling flimsy
  • Cotton/poly jersey may pill over time under heavier sleepers
  • Pricier than the Utopia budget tier without dramatically better certifications

Across the reviews

Synthesis · not our verdict

Across the reviewers we read, Guardmax is positioned as the value-leaning alternative to the higher-priced category leaders, and nytimes.com appears in the signal set with positive language about a smooth, securely constructed encasement. Verified-purchase reviewers at walmart.com and target.com consistently call out the jersey-knit fabric as soft, quiet, and easy to install — three attributes that competitor encasements often fail.

The specific selling point in the data is the zipper-and-flap construction designed to seal the encasement against bed bug entry, paired with stretch to roughly 15–16 inches of mattress depth. r/Bedbugs threads in the signals reiterate the category-wide skepticism that any encasement is a standalone solution, but several r/Bedbugs commenters describe using a six-sided zippered encasement exactly like this one as part of a successful containment strategy.

The weakness, as with every product in this category, is heat: r/Mattress users describe waterproof encasements as the "Blob from the old movie." That criticism is a category trait, not a Guardmax-specific defect, and the jersey knit appears to mitigate it better than fully laminated competitors.

Key specs

Source: Amazon listing
Bed Bug & Allergen Proof
Guardmax waterproof zippered mattress cover, encases your entire mattress and creates an impenetrable barrier with its TPU backing; reinforced with a nylon zipper and Guardmax tab seal. Block dust mite allergens and pests.
Waterproof & Comfortable
This Queen mattress protector with zipper combines soft jersey knit fabric & TPU laminate backing for a cozy sleep surface with 100% waterproof protection — our waterproof mattress encasement guards against spills & stains and extends mattress life.
Tested & Certified
The Guardmax mattress encasement carries Oeko-Tex Standard 100 and EPA certifications, and has been independently lab tested and approved - so you can trust it to be mattress safe and provide ultimate mattress protection.
Easy Care Solution
This machine washable mattress encasement simplifies maintenance; our durable zippered mattress protector resists tears and maintains bed bug mattress cover integrity through repeated washings.
Size & Depth
This anti bed bug mattress cover fits a Queen size Mattress that measures 60" x 80" x 12". It stretches to fit a mattress with a depth of up to 13 inches. Measure your mattress and order the best size for your bed.

What customers say

3 verified voices
We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more›…
Trustedvia The New York Times
MATTRESS ENCASEMENTS ARE A SCAM ... Please do not let these companies talk you into buying these. I have been treating bed bugs for over 10 years.
Supportingvia r/Bedbugs
Absolutely. I use a mattress encasement. It's moisture proof and zips up the entire mattress. It covers the entire mattress 100% and is also a ...
Supportingvia r/CleaningTips

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Video review

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Waterproof & Bed Bug Proof Mattr” · YouTube

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