In-depth review
AllerEase Ultimate Zippered Mattress Protector Review (2027)
In-depth review of the AllerEase Ultimate encasement: cotton top, zippered allergen barrier, waterproof top layer, and care trade-offs.
AllerEase Ultimate Zippered Mattress Protector
A zippered cotton-top encasement with a waterproof top layer from the allergen-barrier specialist.
Our verdict
The Ultimate is AllerEase's full-commitment answer: a zippered encasement with a cotton top, a waterproof top layer, and seams and a zipper specified for allergen barrier duty. For allergy households it covers the two jobs, sealing the mattress and catching spills, in one product, at the cost of the slower laundry cycle every encasement imposes.
What we like
- Zippered encasement seals the mattress rather than covering the top only
- Cotton top keeps the sleep surface natural and quiet
- Waterproof top layer blocks spills and stains
- Specialized seams and zipper built for allergen barrier duty
What to watch out for
- Encasements are slower to remove and wash than fitted protectors
- Waterproofing is specified for the top layer rather than all six sides
- Temperature-balancing finish is a brand claim, not active cooling
What owners report: AllerEase Ultimate Zippered Mattress Protector
Synthesized from recurring themes in long-term owner feedback.
Most praised
- Sealing the mattress in a zippered case gives allergy households more confidence than a fitted sheet style cover
- The cotton top keeps the surface quiet and natural feeling under regular sheets
- Seams and zipper built for barrier duty close the gaps that cheaper encasements leave at corners
Common complaints
- Removing and refitting a zippered encasement makes wash day noticeably slower
- Only the top layer carries the waterproofing, so side spills are less protected than buyers may expect
- The temperature balancing finish does not feel like genuine cooling to hot sleepers
Who it is for
Allergy sufferers who want a zippered encasement with a natural cotton sleep surface and top-layer waterproofing.
Barrier design
Encasement is the meaningful upgrade over fitted protectors: the mattress is sealed inside, so mites and pollen already in the bed stay in, and new allergens stay out. AllerEase builds the Ultimate around that job, with specialized seams and a zipper chosen to avoid the gaps cheap encasements leave at the corners.
Surface and waterproofing
The cotton top keeps the sleep surface closer to bedding than the synthetic tops of many encasements, and the waterproof top layer handles drinks and night sweats. Note the scope honestly: waterproofing is specified for the top layer, so this is spill defense on the sleeping surface, not a six-sided liquid seal like the SureGuard.
Living with an encasement
Installation is a two-person, mattress-off-the-frame job, and washing means repeating it, so most owners pair the Ultimate with a fitted protector over the top and wash that weekly. The temperature-balancing finish in AllerEase's description is a comfort claim worth noting, not a substitute for a genuinely cool-touch surface.
Key specifications
- Size
- Queen
- Style
- Zippered encasement
- Surface
- Cotton top
- Closure
- Zipper
- Protection
- Waterproof top layer, allergen barrier
- Model
- 3514AMZ
Sources: Amazon product listing, CamelCamelCamel
Also consider
SureGuard Mattress Encasement
A zippered six-sided fortress against bed bugs, allergens, and spills.
Why consider it: Six-sided waterproof sealing when bed-bug defense and full liquid protection lead.
- Style: Zippered full encasement, six sides
- Surface / membrane: Cotton terry top / waterproof membrane
AllerEase Waterproof Mattress Protector
Allergy-brand protection with a soft cotton feel and waterproof core.
Why consider it: The same brand's fitted protector for easier weekly washing over an encasement.
- Style: Fitted sheet, top and sides
- Surface / membrane: Soft cotton-feel / waterproof barrier
Research-based assessment. TrueGear has not hands-on tested this product; this evaluation synthesizes manufacturer specifications, retailer documentation, and published expert reviews.
Questions, answered
Is the whole encasement waterproof?
The waterproof layer is specified for the top. The sides and bottom provide the allergen barrier; for six-sided waterproofing, choose the SureGuard encasement instead.
Does it help with dust mite allergy?
That is its design brief: a zippered barrier with specialized seams keeps mites and their allergens separated from the sleeper, especially paired with hot washing of the bedding above it.