Mainstays Cooling Waterproof Fitted Mattress Protector, King
Mainstays Cooling Waterproof Fitted Mattress Protector, King
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Mainstays

Mainstays Cooling Waterproof Fitted Mattress Protector, King

4.3 stars out of 1799 reviews
(4.3)|
1,799 ratings
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Size:King
Pack Size:Single

Key item features

  • Cooling Comfort: Super soft and cool to the touch for a comfortable sleep experience.
  • Waterproof Protection: TPU coating provides waterproof protection against spills and stains.
  • Allergy Barrier: Acts as an allergen barrier to help maintain a clean sleeping environment.
  • Antimicrobial Treatment: Treated with an antimicrobial agent to inhibit the growth of odor-causing bacteria.
  • Easy Fit: Fitted design with stretchable sidewalls fits most mattresses up to 15 inches for quick and easy on/off.
  • Machine Washable: Easy to clean and maintain with machine washable convenience.
  • King Size: Designed to fit king-sized mattresses.
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Current price is $35.64
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  • Free 90-day returns

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Columbus, 43215
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Customer ratings & reviews

4.3 out of 5 stars
stars1,799 ratings444 reviews
How item rating is calculated
  1. 5 stars72% (1,291)
  2. 4 stars10% (177)
  3. 3 stars6% (108)
  4. 2 stars3% (52)
  5. 1 star10% (171)

Reviews summary

Pros

  • : Provides layer against liquids and spills.
  • : Offers a ventilated sleeping surface.
  • : Provides a comfortable and secure fit on the mattress.
  • : Made with durable and comfortable components.
  • : Offers good quality at a lower cost.

Neutral

  • : Can be effective in reducing sweat, but may trap heat in some cases.
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Showing 1-3 of 444 reviews

Oct 9, 2025
Me
Item details
Size: King
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Was better than I expected, wanted something quick, figured this would work till I found something better since I didn't want my expensive mattress to get anything on it , to my surprise this was awesome,, price was so low, I figured I was getting the good stuff 🤣 %26 needed for the next day . I didn't need to look any further this one was Great!!

Helpful?6VGJCU9TGYLK1307804516
Jul 22, 2025
anonymous
Top Reviewer
Item details
Size: Queen
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

So far so good

So far so good I like how it fits my mattress and it's not hot I have a memory foam 12” Queen with the cooling gel in it so I was afraid putting a mattress protector on it would make it hot but this one isnt it feels more like rubber like a thin stretchy rubber. It hasn't affected how it feels as far as the comfort. I can't tell I have it on my bed at all. It has three year warranty as well so I feel good about that, just keep your receipt with the box.

Helpful?6VGJCU9TGYLK1307804516
Nov 8, 2025
Destinee
Top Reviewer
Item details
Size: Queen
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Worth it

Feels so good and cooling. I had a plastic one prior to this and it made me sweat horribly throughout the night. This one does not do that. It is a bit more expensive but worth it. It fit and went on easily. It is also soft and comfortable. You can barely tell it is on under your sheet

Helpful?6VGJCU9TGYLK1307804516