# Amazon Basics Waterproof King Mattress Protector

Amazon Basics Waterproof King Mattress Protector is a fitted-sheet-style cover with a cotton-terry surface and a claimed waterproof membrane. Its machine-washable design and stated fit for mattresses up to 18 inches deep suit buyers seeking a washable layer against spills, though customer feedback reports mixed experiences with water resistance.

- [Original product page](https://loonieperks.com/product/amazon-basics-waterproof-king-mattress-protector)
- [View offer](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)
- Market: CA
- Language: en-CA
- Currency: CAD
- Brand: Amazon Basics
- Model: AmazonBasics Waterproof, Mattress Protector, King \(12-18\) inch
- Category: Home & Kitchen > Home Textiles > Bedding
- Price: 34.44 CAD
- Previous price: 42.46 CAD
- Discount: 19%
- Price checked: 2026-11-14T11:51:50.037Z
- Rating: 4.5 / 5
- Reviews: 9746

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Fitted-sheet-style format is intended to fit mattresses up to 18 inches deep.
- Listing describes a cotton-terry surface over a waterproof, breathable and quiet membrane.
- Machine-washable care makes routine cleaning possible without treating it as a disposable barrier.

## Pros

- King size and the stated 18-inch depth limit provide a clear fit target for many standard mattresses.
- The fitted-sheet-style design avoids a zippered enclosure.
- Customer feedback describes softness, comfort and fit positively overall.

## Cons

- Water-resistance experiences are mixed in customer feedback, so buyers relying on spill protection should weigh that uncertainty.

## Specifications

### Identity
- Brand: Amazon Basics
- Model: AmazonBasics Waterproof, Mattress Protector, King \(12-18\) inch
### Dimensions and installation
- Size: King
- Weight listed: 0.95 kg
- Design: Fitted-sheet-style design
- Maximum mattress depth stated: fits any type of mattress up to 18 inches deep
### Materials and protection
- Material listed: Cotton
- Fabric composition listed: 80% Cotton
- Water resistance listed: Waterproof
- Surface and barrier described: Hypoallergenic cotton-terry surface; waterproof, breathable, quiet membrane barrier
- Special feature: Hypoallergenic
- Other stated protection: Protects mattress from dust mites, allergens, bacteria, and liquid spills
- Vinyl and PVC: Vinyl-, and PVC-free
### Care and other details
- Care instructions: Machine Wash
- Closure type: Pull On
- Colour: White
- Thread count: 50
- Age range: Adult
- Certification-related claim: Made in OEKO-TEX Standard 100 factory, an independent certification system that ensures textiles meet high safety and environmental standards.

## Before you buy

- The title specifies King, 76"X80"+18”, while the model name says King \(12-18\) inch and the feature text says mattresses up to 18 inches deep. These depth and sizing details are inconsistent, and the listing's waterproof, breathable, quiet and protection claims are not independently confirmed. Check the selected size and mattress-depth fit before buying.

## A good fit for

- King-bed owners wanting a fitted, machine-washable mattress-cover layer.
- Buyers who prefer a cotton-terry surface and a listing-claimed barrier against liquid spills and allergens.
- Households with children or pets seeking a mattress protector, as suggested by the listing.

## Less suited to

- Buyers who need consistently confirmed water resistance, since customer experiences on this point are mixed.
- Shoppers seeking a zippered, fully enclosed mattress encasement.

## Customer feedback

Customer feedback highlights positive impressions of fit, quality, softness, comfort and mattress protection. That fits the product's intended role as a fitted, washable cover, but opinions on water resistance are mixed, which matters most for buyers depending on the claimed spill barrier. Aggregate ratings are mostly favourable, though ratings alone do not establish how the protector performs for a particular mattress or spill.
- Positive themes: Feedback describes the fit, softness and comfort positively.
- Positive themes: Customers also report satisfaction with quality and mattress protection.
- Mixed feedback: Water resistance receives mixed feedback.

## Frequently asked questions

### What mattress depth does this protector fit?
The feature text says it fits mattresses up to 18 inches deep, but the model name gives a 12-18 inch range and the title states 76"X80"+18”. Confirm the selected listing's dimensions and depth fit.
### Is this protector machine washable?
Yes. The care information says Machine Wash. The listing does not provide further washing-temperature or drying instructions.
### How reliable is its water resistance?
The listing describes it as waterproof, but customer feedback reports mixed experiences with water resistance. Treat the performance as a stated claim rather than a guarantee.
### Does it have a zipper?
The listing describes a fitted-sheet-style design and gives the closure type as Pull On. It does not describe a zippered enclosure.

## Alternative options

- [Utopia Bedding Premium Waterproof Bed Bug Mattress Cover, Queen Zippered Mattress Protector, 12 Inches Deep, Dust Mite Proof 6-Sided Mattress Encasement for Bed](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)
- [Queen Mattress Pad, Quilted Mattress Protector Topper fits 16" Deep Pocket \| White, Soft Breathable Fitted Mattress Cover, Noiseless, Machine Washable for Home & Hotels by Utopia Bedding](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)
- [Utopia Bedding King Size Mattress Protector Zippered, 100% Waterproof \| Bed Bug and Dust Mite Proof Mattress Encasement, Absorbent 6 Sided Mattress Cover fits upto 15" deep, Machine Washable](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)
- [Waterproof King Mattress Protector, Mattress Pad fits Upto 16" Deep Pocket \| White, 100% Waterproof Mattress Cover Soft Breathable & Noiseless Mattress Topper by Utopia Bedding](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)
- [Utopia Bedding 100% Waterproof Twin XL Size Mattress Protector Noiseless \| Deep Pockets Fits 15" Mattress, Soft, Breathable & Dirt-proof Mattress Pad, Machine Washable Mattress Cover For Home & Hotel](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)
- [AVIKEN Queen Waterproof Mattress Protector, Breathable Cooling Bed Cover \| 100% Waterproof TPU, Noiseless 3D Air Fabric, Soft Mattress Pad, 8"-21" Deep Pocket, Machine Washable, OEKO-TEX Safe](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)
- [Bamboo Viscose Waterproof Mattress Protector King Size, fits 17" deep \| Utopia Bedding Cooling Mattress Cover, Soft Breathable Mattress Pad, Noiseless, Fitted Style, Stretchable Pockets, Washable](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)
- [Premium Waterproof Zippered Mattress Protector Full Size, 8" Deep Pocket \| Utopia Bedding Bed Bug Proof Mattress Cover, 6-Sided Mattress Encasement, Dust Mite Proof, Washable, 8" Deep Pocket](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)
- [Utopia Bedding Queen Size Mattress Protector Zippered, 100% Waterproof \| Bed Bug and Dust Mite Proof Mattress Encasement, Absorbent 6 Sided Mattress Cover fits upto 15" deep, Machine Washable](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)
- [King Mattress Pad, Quilted Mattress Protector Topper fits 16" Deep Pocket \| White, Soft Breathable Fitted Mattress Cover, Noiseless, Machine Washable for Home & Hotels by Utopia Bedding](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)
- [Premium Waterproof Zippered Mattress Protector Queen Size, 10" Deep Pocket \| Utopia Bedding Bed Bug Proof Mattress Cover, 6-Sided Mattress Encasement, Dust Mite Proof, Washable, 10" Deep Pocket](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)
- [Utopia Bedding Full Size Mattress Protector Zippered, 100% Waterproof \| Bed Bug and Dust Mite Proof Mattress Encasement, Absorbent 6 Sided Mattress Cover fits upto 15" deep, Machine Washable](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)

## Add-ons

- [LINENSPA Zippered Encasement Waterproof, Dust Mite Proof, Bed Bug Proof, Hypoallergenic Breathable Mattress Protector - King](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)
- [Waterproof Mattress Protector Twin Size, Single Mattress Protector \| Hypoallergenic Terry Mattress Cover, Ultra Soft and Brea](https://loonieperks.com/visit/amazon-basics-waterproof-king-mattress-protector)

## Images

![Amazon Basics Waterproof King Mattress Protector — 1](https://loonieperks.com/i/aUeNKt1u-QfyIDVaC0Tf0na7TMIOySdi4tjfGqpRQOTMSpecX_fbFE5at1M0oOKe2S6nwMqnq-dY0Wmg8H79uu7WNejC8kTlUThmlLDvV70NWy1UMaQHmN_o.jpg)

![Amazon Basics Waterproof King Mattress Protector — 2](https://loonieperks.com/i/eQ1mEo-5Uy5PTgci7QjCszN2B_NBAzN_bujAwn0uWMb6LeCVn02t5Q-sjba8xBZC53TOwVHxuwI_BiiQbXjXkdSvlwaIvcv3s0ulJwlX-MvfUYUXutv_6tgu.jpg)

![Amazon Basics Waterproof King Mattress Protector — 3](https://loonieperks.com/i/gmfyP6P63M_q9n3Vgpl3EjFFYKCVR2lFEeKnaNjXdFWGlvoXHg9EahPL751-kTWCYCafw0IoM7GQr1IrqioPuxB8Rq-FP3xK5xA-Sk2UacB2diusPdK4x0Pl.jpg)

![Amazon Basics Waterproof King Mattress Protector — 4](https://loonieperks.com/i/DgM6giUEOkrCy0xpbPlkXL3DGW0XEsb712ItoVk4-K-hVQ9isvIf2RysCmln98PmLrHPcK5XSkB-ALaSkVkO1bDqnjWYqbfK27MRX9HZwOgxy-ajwigbJNCo.jpg)

![Amazon Basics Waterproof King Mattress Protector — 5](https://loonieperks.com/i/5dTm1Ljghr8Lb4z5qfpIUt0Af98AYjU1BM1kEjD_zd7jVqIqOdz0_xGnzvlAd4ybKbwniAIp3tPCde5Ca3bYV4aOCMijBt5k9HB4B6TamDFV67K17pf3CgCO.jpg)

![Amazon Basics Waterproof King Mattress Protector — 6](https://loonieperks.com/i/krGuWk2Zon9DBxyDkBlFAagyEZKNhgQs4BSdqs2uk-CjD_NecZ_SE2AQz1oCyClDu63XnydmH90Zwz13JXnBtfdhx12ohESfWRGkDE89abLKQzBvny4CpQK-.jpg)

![Amazon Basics Waterproof King Mattress Protector — 7](https://loonieperks.com/i/evw_rDRYneZL027LQOF6IMYkUTn3C5ZwwoCb18Dswy1YZL9ma5312b40S6lbLW-EB2V-OQ0lJaLcrNqGjBxER9dK0VvD1L_LK2OtolPxLgO-2JE_v9qrJFg0.jpg)