Search  for anything...
Amazon Basics

Amazon Basics Waterproof Breathable Mattress Protector, King Size, 18 inch Deep, Machine Washable, White

  • Based on 9,496 reviews
Condition: New
Checking for the best price...
$19.93 Why this price?
Save $4.06 was $23.99

Buy Now, Pay Later

As low as $4 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 90-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Oct 22
Order within 1 hour and 29 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Size: King


Features

  • Top: 80% Cotton 20% Polyester, Side: 100% Polyester
  • Imported
  • WATERPROOF PROTECTION: Safeguard your mattress with our king size mattress protector, perfect for keeping your bed dry and clean from any spills or moisture
  • HYPOALLERGENIC MATERIAL: Rest easy with our king bed mattress protector, crafted with cotton-terry
  • BREATHABLE COMFORT: This king mattress protector is waterproof and features a breathable design, allowing airflow for comfort while maintaining a quiet sleeping environment
  • Great fit: Our full waterproof mattress protector features a fitted-sheet-style design that accommodates mattresses up to 18 inches deep, providing a snug fit
  • OEKO-TEX STANDARD: This king size mattress cover is produced in an OEKO-TEX Standard 100 facility, upholding high safety and environmental standards for your peace of mind

Description

Amazon Basics Waterproof Fitted mattress Kind (12-18) inch From the Manufacturer AmazonBasics

Color: White


Size: King


Fabric Type: Top 80% Cotton 20% Polyester, Side 100% Polyester


Special Feature: Water Proof


Age Range Description: Adult


Number of Items: 1


UPC: 841710153743 840324419856


Unit Count: 1 Count


Global Trade Identification Number: 43


Item Weight: 0.95 kg


Item Type Name: Waterproof mattress protector


Model Number: SC03-012


Manufacturer Part Number: SC03-012


Other Special Features of the Product: Water Proof


Closure Type: Pull On


Water Resistance Level: Waterproof


Fabric Type: Top 80% Cotton 20% Polyester, Side 100% Polyester


Product Care Instructions: Machine Wash


Material Type: Cotton


Thread Count: 50


Size: King


Color: White


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 22

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Excellent Buy for the price
Size: Twin
Used for a guest room/office combo and works well for the purpose.
Reviewed in the United States on August 1, 2026 by MelissaT Jones
    • Fits well and feels great!
Size: Full
Comfortable and effective. Fits well and easy to wash! The zipper makes it not as hard as I thought it would be to put on and take off for washing. Holding up well!
Reviewed in the United States on August 6, 2026 by C Baldwin
    • Does its job perfectly
Size: King
Had our first accident with our kids with these. They held up amazing. They fit our kids king beds and our 18 inch king perfectly. Thickness is just right to keep anything from making its way through to our mattress. I don't feel they make you to hot so some decent breathable material.
Reviewed in the United States on July 29, 2026 by Krissi
    • Membrane + Thin Terry Cloth Layer = "Protector." Not Quilted Padded Mattress "Cover"
Size: Full
This style of mattress protector consists of a "breathable membrane" that blocks water/liquid but allows moisture to vent out. It is covered with a thin terry cloth top layer, and has wide + long elastic to fit the mattress. The combo membrane+terry layer is quite thin. This differs from thicker quilted, padded "mattress covers" that add a soft topping to a mattress. I was surprised by this Amazon Basics product that matches a "Made in USA" product (used on another bed) that cost 2x more. The functional feature is the membrane. I choose not to test it by applying liquid to the protector; this was after I washed and fitted it to the mattress, then fitted queen sheets, etc. Perhaps someone else will test it via liquid. Buyers of other protectors that are rated as "waterproof" posted actual experience that they were not waterproof. As they say in Brooklyn, "You pays your money, and you takes your chances." ... show more
Reviewed in the United States on August 1, 2026 by Sui Lin Chee
    • Great value
Size: Twin
Very comfortable
Reviewed in the United States on August 13, 2026 by ricsull
    • Grate price for the product and well said !!!!
Size: Queen
Perfect for Queen Size bed. I haven't tried it out to see if it protects the mattress. The stretchiness is assume .
Reviewed in the United States on August 18, 2026 by Northern Michigan Adventures
    • it fits
Size: King
fits well, so far so good.
Reviewed in the United States on August 18, 2026 by Nico
    • Not waterproof
Size: Twin
I bought this mattress protector for exactly this kind of situation: a child climbing into my bed and having an overnight accident. Unfortunately, the protector completely failed. The liquid soaked right through to the mattress, turning what should have been a simple sheet and mattress pad change into a much bigger cleanup. Instead of sleeping in my own bed, I ended up on the couch. A mattress protector has one job: protect the mattress. This one didn't. Save your money and buy one that actually works. ... show more
Reviewed in the United States on July 15, 2026 by Jenny Alden

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...