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Mainstays NexGen Waterproof Zippered Mattress Protector vs SafeRest Premium Mattress Protector

The Mainstays NexGen is the better pick if you want a full zippered encasement that seals the whole mattress, including the sides and base. The SafeRest Premium is a fitted cotton-terry protector that guards the top surface only, but it is OEKO-TEX certified and softer against the skin. Both are waterproof and machine washable. Mainstays has a large owner base and a 3-year warranty; SafeRest is the more breathable, quieter choice for allergy-focused sleepers.

  • Choose the Mainstays NexGen if you want a zippered encasement that covers all six sides of the mattress and seals shut.
  • Choose the SafeRest Premium if you want a soft cotton-terry top layer with OEKO-TEX certification and a fitted, easy-on design.

Prices

  • Mainstays NexGen Waterproof Zippered Mattress Protector: $15.44 at Walmart (last seen Nov 9)
  • SafeRest Premium Mattress Protector: $23.99 at Amazon (last seen Nov 9)
  • Difference: the Mainstays NexGen Waterproof Zippered Mattress Protector is $8.55 cheaper than the SafeRest Premium Mattress Protector at the latest prices (Nov 9)
Mainstays
Mainstays NexGen Waterproof Zippered Mattress Protector

Mainstays NexGen Waterproof Zippered Mattress Protector

4.4(33,797 ratings)
$15.44at WalmartChecked Nov 9
See all prices and details
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Pros
  • Zippered design seals the entire mattress
  • Waterproof barrier on all sides
  • 3-year manufacturer's warranty
  • Large owner base with a 4.4 rating
  • Hypoallergenic and easy to maintain
Cons
  • Queen size only here
  • Synthetic top can feel warmer and crinkle
  • Zippered encasement takes longer to fit and remove
SafeRest
SafeRest Premium Mattress Protector

SafeRest Premium Mattress Protector

$23.99at AmazonChecked Nov 9
See all prices and details
Visit Amazon

As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Cotton terry top sleeps cooler and quieter
  • OEKO-TEX certified for textile safety
  • Fitted style goes on and off quickly
  • Available in Queen and King
  • Machine washable
Cons
  • Protects the top only, not the sides or base
  • No zipper, so it can shift on the mattress
  • No warranty or rating stated in the listing

What separates them

Mainstays NexGen Waterproof Zippered Mattress ProtectorSafeRest Premium Mattress Protector
CoverageFull zippered encasement wraps the top, sides and baseFitted sheet style covers the top surface only
ClosureZipper seals the whole mattress insideElastic fitted skirt, no zipper
Surface feelSmooth synthetic top100% cotton terry top, softer and quieter
CertificationHypoallergenic claim, no third-party textile certification listedOEKO-TEX certified (SH025 151792)
SizesQueen only in this listingQueen and King
Warranty3-year manufacturer's warrantyNo stated warranty in the listing
Owner feedback4.4 out of 5 from about 33,800 ratingsNo rating shown in this listing
Best forWhole-mattress protection, bed bugs, spills reaching the sidesAllergy relief and everyday top-surface spills

Price history

  • Mainstays NexGen Waterproof Zippered Mattress Protector: lowest $30.88 on Nov 10 at Walmart.
  • SafeRest Premium Mattress Protector: lowest $18.99 on Nov 10 at Amazon.

Prices at every store

Mainstays NexGen Waterproof Zippered Mattress Protector

  • WalmartNew

    In stock

    $15.44+ $5.99 shippingChecked Nov 9
    Visit Walmart

Also available at

  • WalmartCheck price at Walmart
Prices and history →

SafeRest Premium Mattress Protector

  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $23.99Checked Nov 9
    Visit Amazon
Prices and history →

Specs compared

SpecMainstays NexGen Waterproof Zippered Mattress ProtectorSafeRest Premium Mattress Protector
sizeQueenQueen, King
colorWhiteWhite
bed_sizeQueen—
multipack_quantity1—
Type—Mattress Protector
Material—Cotton
Protection Properties—Waterproof
Length—11.5 inches
Width—11.1 inches
Thickness—3.6 inches
Care Instructions—Machine Wash
Closure Type—Zipper
Show all 22 specsShow fewer specs
SpecMainstays NexGen Waterproof Zippered Mattress ProtectorSafeRest Premium Mattress Protector
Sustainability Certifications—OEKO-TEX Certified
Certifications—OEKO-TEX Certified (SH025 151792)
Style—Fitted
Specialty Style—Tight Top
Fill Material—100% Cotton
Pattern—Abstract
Age Range—Adult, All Ages
Use Case—Bedroom
Solution For—Allergies
Typical Users

What reviewers say

Mainstays NexGen Waterproof Zippered Mattress Protector

  • 4.4 / 533,797 ratings

With tens of thousands of ratings averaging about 4.4 out of 5, most owners say it does its job: it keeps spills and stains off the mattress and holds up through washes. Complaints center on the plastic feel, warmth and a fit that can be snug or baggy depending on mattress depth.

What people mention
  • WaterproofingPraisedOwners say it stops spills and accidents from reaching the mattress.
  • NoiseCriticisedSome find the waterproof layer crinkly and noticeable under sheets.
  • FitMixedFit varies; some say it hugs the mattress, others find it tight or baggy.
  • WarmthCriticisedA few owners say it sleeps warmer than a standard pad.

SafeRest Premium Mattress Protector

Owners generally rate the SafeRest Premium well for doing its job quietly: it keeps mattresses dry through spills and accidents and washes up well. Complaints center on heat retention, thinness and the elastic skirt losing grip over time.

What people mention
  • WaterproofingPraisedOwners say it reliably blocks spills, sweat and pet accidents from reaching the mattress.
  • NoisePraisedReviewers find it much quieter than vinyl or plastic protectors, with little crinkle under a sheet.
  • HeatCriticisedSome hot sleepers say the waterproof backing traps warmth and makes the bed feel warmer.
  • ThicknessMixedBuyers note it is thin and adds no cushioning, which some see as a plus and others as a letdown.

Questions and answers

Which is better for bed bugs or a full mattress seal?
The Mainstays NexGen. Its zipper closes around the whole mattress, so the sides and base are covered too. The SafeRest fitted protector leaves the sides and underside exposed.
Which feels better to sleep on?
The SafeRest Premium. Its cotton terry top is softer and less noisy than the smooth synthetic top on the Mainstays. Hot sleepers usually prefer the cotton surface.
Which is easier to put on and wash?
The SafeRest. The fitted skirt goes on like a sheet and comes off fast for machine washing. The Mainstays zippered cover takes more effort to fit and remove.
Is the SafeRest worth stepping up to over the Mainstays?
Step up to the SafeRest if comfort, quiet and OEKO-TEX certification matter more than full encasement. Stay with the Mainstays if you need the sides and base sealed.
Do both protect against spills?
Yes. Both have a waterproof backing that blocks liquids from reaching the mattress. The difference is coverage: Mainstays seals all sides, SafeRest guards the top.
Does the Mainstays warranty cover stains or wear?
It is a 3-year manufacturer's warranty on the protector itself. It does not cover damage to your mattress, and normal wear terms vary, so keep the packaging.

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