Name: Mainstays Waterproof Soft Knit Mattress Protector, Full- Fitted
Brand: Mainstays
SKU: 6000198584630
Price: 39.97 CAD
Availability: InStock
Rating: 4.2 (89 reviews)

Walmart US Ecommerce Website

GENERAL MERCHANDISE

PHARMACY

GROCERIES

VUDU

SPARK

PHOTO

ADVERTISING

SAVINGS CATCHER

GIFTCARDS

INHOME

AFFILIATE

ONEAPP

LOTUS

HELP

SMART_REORDER

GROCERY

CONV_COMMERCE

Try it free

Glass WEB: BTS x Walmart + "Non Member" PIP Banner Wk 26 2026

Buy Box Ad Container Module for Desktop

Custom HTML Module - About Klarna

Custom HTML Module - About SalesFinancing - Second update

I want delivery savings + more with

Try 30 days of free delivery + more! Choose your plan at checkout.

#2e2f32

NEW Fulfillment Tue Apr 15 2025 2:17 PM EDT

MTZ Team | Marquee 1 Ad | Item Page

MTZ Team | Marquee 2  Ad | Item Page

MTZ Team | Skyline Ad | Item Page

Other products of interest

MTZ Team | Sponsored Product Carousel - Item Page

More items to explore

MTZ Team | Sponsored Product Carousel - Item Page Broad 

NEW AddonServicesRedesign Fri Jul 18 2025 1:30 PM EDT

NEW AddToCart Mon Jul 14 2025 3:50 PM EDT

NEW AddToCart Tue Apr 15 2025 2:19 PM EDT

NEW BrandBoxDisplayAd Mon Jul 14 2025 9:14 PM EDT

NEW BrandLink Wed Apr 23 2025 12:07 AM EDT

NEW Breadcrumb Mon Apr 07 2025 8:23 PM EDT

Walmart Rewards Mastercard

NEW FinancingOptions Tue Dec 10 2024 3:32 PM EST

NEW Fulfillment Mon Jul 14 2025 4:00 PM EDT

NEW InternationalShipping Mon May 18 2026 1:02 PM EDT

New Item Page - Nutrition Value Placeholder Module, Wednesday, February 08, 2023, 5:11:53:90 pm

New Item Page - Product Description Placeholder Module, Wednesday, February 08, 2023, 5:14:04:38 pm

New Item Page - Product Ingredients Placeholder Module, Friday, February 10, 2023, 10:34:23:79 am

New Item Page - Product Specifications Placeholder Module, Wednesday, February 08, 2023, 5:15:29:61 pm

New Item Page - Reviews Placeholder Module, Wednesday, March 22, 2023, 10:04:29:34 am

New Item Related Shelves Module, Thursday, June 15, 2023, 6:08:51:10 am

 Price Match Policy

Prices, terms, and availability may vary online, in stores, and in–app. If the advertised price is not shown here, inventory at the advertised price may now be sold out. Please see the other offers, if available, while quantities last. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold in store by Walmart may be eligible for a price match to online items shipped and sold by Walmart. For variable weight items, price shown is an estimated price only – you will be charged for the actual weight of the item. See our

NEW LegalPriceDisclaimer Mon Jul 14 2025 4:11 PM EDT

NEW LegalPriceDisclaimer Wed Apr 30 2025 12:13 AM EDT

NEW ListsAndRegistries Tue Apr 15 2025 4:50 PM EDT

NEW PaymentPlans Mon Jul 14 2025 4:15 PM EDT

NEW PaymentPlans Tue Apr 15 2025 1:31 PM EDT

NEW PriceInformation Tue Apr 15 2025 1:30 PM EDT

NEW ProductDescriptionPlaceholderATF Tue Jul 08 2025 11:41 PM EDT

NEW ProductFlags Thu Apr 10 2025 11:42 PM EDT

NEW ProductHighlightsPlaceholder Wed Jul 02 2025 12:43 AM EDT

NEW ProductImages Tue Apr 15 2025 2:13 PM EDT

NEW ProductName Tue Apr 15 2025 12:53 PM EDT

NEW ProductReturnPolicyDetails Tue Dec 10 2024 3:17 PM EST

NEW ProductReturnPolicy Mon Jul 14 2025 5:04 PM EDT

Return Policy

NEW ProductReturnPolicy Tue Apr 15 2025 2:28 PM EDT

NEW ProductStickyBuyBox Wed Jul 02 2025 12:55 AM EDT

NEW PromoDiscount Tue Apr 15 2025 6:53 PM EDT

New SellersSecondaryBuyBox Module, Tuesday, September 05, 2023, 4:02:21:76 pm

Shop Confidently

NEW ShopWithConfidence Thu Jan 15 2026 2:20 PM EST

NEW SocialProofMessage Tue Apr 15 2025 7:17 PM EDT

NEW SoldAndShippedBy Mon Jul 14 2025 5:04 PM EDT

NEW SoldAndShippedBy Tue Apr 15 2025 2:23 PM EDT

New!

More savings, less stress.

HSK_Subscribetosave_E_v2

NEW SubscriptionOptionsModule Tue Apr 15 2025 6:44 PM EDT

NEW SubscriptionPriceMessage Wed Apr 23 2025 6:48 PM EDT

NEW Variants Wed Apr 23 2025 11:01 PM EDT

[Sticky] BuyBoxAd Mon Aug 11 2025 3:59 AM EDT

[Sticky] PriceInformation Mon Jul 14 2025 4:03 PM EDT

Syndigo

#000000

Item Carousel - Rich Relevance 1

RR carousel

Item Carousel - Rich Relevance 2

RR carousel 2

Item Carousel - Rich Relevance 3

Mainstays Waterproof Soft Knit Mattress Protector, Full- Fitted

<ul><li>Soft Sleep Surface: Features soft knit fabric for added comfort.</li><li>Waterproof Protection: Includes a waterproof laminate backing to shield against spills and stains.</li><li>Deep Mattress Fit: Stretches to accommodate mattresses up to 15 inches deep.</li><li>Effortless Upkeep: Machine washable for easy care, with instructions for cold wash and low heat tumble dry.</li></ul>

Hypoallergenic <ul><li>Soft Knit Fabric adds a layer of comfort to your mattress</li><li>Waterproof provides stain and spill protection</li><li>Stretches to Fit mattresses up to 15 inches deep</li><li>Machine Washable for easy care</li><li>Easy Care Instructions machine wash cold, only non-chlorine bleach when needed. Tumble dry on lowest setting separately to avoid protector damage. Dryer temps vary by brand, use the lowest setting and remove when dry. Do not iron.</li></ul>

Bed Size

Water Resistance Level

Pocket Depth

Mattress Encasement Type

Attachment Style

Material

Colour

Brand

Thread Count

Has Written Warranty

Age Group

Keep your mattress clean and comfortable with the Mainstays Waterproof Fitted Soft Knit Mattress Protector. The waterproof laminate backing shields against everyday spills and stains while the soft knit fabric maintains the cozy look and feel of your mattress. This protector installs like a fitted sheet and stretches to accommodate mattresses up to 15 inches deep. Best of all, it’s machine washable for easy care!

Fabric Care Instructions

Features

Assembled Product Weight

Manufacturer Part Number

Assembled Product Dimensions (L x W x H)

Universal Product Code (UPC check)

Walmart Item #

fulfillment

title_shipToHome_date_delivery

Twin

Full

Queen

King

Mattress Fit

Softness

Value For Money

Material Quality

Fabric

Ease Of Washing

Comfort

Waterproofing

I like this cover! It has deep pockets with a tight fit over the mattress.
It does not move on the bed
In fact I went a bought another one for the other bedroom

Matress pad

walmart.com

Fits good,easy to install, good price, good quality and very comfortable

Mattress cover

THESE WASH AND DRY BEAUTIFULLY.  THEY ARE NOT BULKY LIKE SOME.  I HOPE THEY LAST A LONG TIME.

ONE OF THE BEST MATTRESS PADS I HAVE BOUGHT

This fits great to the mattress, doesn't make me sweat. Very Comfortable.

Good Product!

My preschooler is working on nighttime potty training and has had multiple accidents. This cover does exactly what it's supposed to do and is completely waterproof. For small accidents you can clean it off with a towel and you can throw it in the washing machine for bigger messes no problem. Follow the directions though and do not dry on higher temperatures, while it may feel soft, it is still plastic.

Great for my preschooler

Soft to touch. Washed well. No shrinkage. Fits good. No complaints yet. However bought for sons new mattress to protect against accidents and illness. Has not been put to "the test" yet. So far its good.

it's fine

It claims to be water proof but it is not. I bought this cover for my mattress because it's soft and quite unlike the plastic ones (which I also have on the mattress under this cover) my daughter had an accident and it was wet on the plastic cover.I give it 2 stars for the sake that it is quite

Not waterproof

Thus pad is terrible! I gave it one star because A. I had to rate it 1-5 and B. Only because it is soft and not noisy at all. However, my son is a bed wetter and peed the very first night we had this on his bed and it soaked through this pad into his mattress. I'm so angry!! I bought this based on 3 friend's recommendations. They've had theirs a few years, so I'm wondering what this company changed about this pad?? Whatever it is, it's changed for the worse. I'm returning it ASAP

NOT WATERPROOF AT ALL

I purchased this pad at my local store about 2 years ago. We had just bought a new mattress set and wanted to make sure that my little ones didn't have an accident and ruin our new mattress. In this 2 years, there have been no accidents, until today...my 3 year old fell asleep for her nap on my bed. When she woke, she had wet herself...I immediately went to check my bed, knowing that I would need to change the sheets/mattress protector. When I removed the WATERPROOF pad, my mattress is WET. I had always loved this product until today. 
*Note to self: When buying a waterproof mattress pad, perform your own test to check to make sure that it is indeed waterproof before committing to using it on your bed.

I purchased this after I bought an expensive mattress because we have pets and a toddler. It didn't protect the mattress from our toddler's overnight accident. Our mattress was stained and smelled. Luckily my wife is awesome and managed to get both out with a lot of work. Very disappointed!

NOT WATERPROOF

Mainstays Waterproof Soft Knit Mattress Protector, Full- Fitted packaged front view showing white fitted protector on a staged full mattress; soft knit textured top, elasticized skirt fits up to 15 in deep, packaging notes waterproof backing and machine washable care. Often used to protect guest beds.

Mainstays Waterproof Soft Knit Mattress Protector, Full- Fitted

Shop Confidently

How you’ll get this item:

Your data, your choice