Breathable Waterproof King Mattress Protectors

Breathable Waterproof King Mattress Protectors help you find the right layer of protection for your king mattress while supporting a cleaner, more comfortable sleep space. Explore options in a range of materials, designs and price points to find a mattress protector that fits your needs and complements your bedding.

Sort & Filter

Sleepy's Signature TOTAL DEFENSE Mattress Protector

5687

Starting at

$129⁹⁹

Temperature
Allergies

Save $100 when you bundle¹⁰.

Sleepy's Deluxe Comfort Cool Mattress Protector

4179

Starting at

$169⁹⁹

Temperature
Allergies

Save $150 when you bundle¹⁰.

Sleepy's Basics Waterproof Mattress Protector

2492

Starting at

$69⁹⁹

Temperature
Allergies

Save $50 when you bundle¹⁰.

Tempur-Pedic TEMPUR-Protect Breeze Mattress Protector

802

Starting at

$309⁰⁰

Sleepy's Signature Total Encasement Mattress Protector

1001

Starting at

$159⁹⁹

Temperature

Bedgear Dri-Tec Mattress Protector

150

Starting at

$189⁹⁹

Temperature
Allergies

Allerease Ultimate Mattress Protector

337

Starting at

$49⁹⁹

Temperature
Allergies

A breathable waterproof king mattress protector helps protect your mattress from spills, perspiration, stains and everyday moisture while supporting a more comfortable night’s sleep. Designed to fit standard king mattresses, these protectors typically combine a soft, quiet sleep surface with a waterproof barrier that helps prevent liquids from reaching the mattress. Breathable materials such as cotton, polyester blends or moisture-wicking performance fabrics can promote airflow and help reduce the warm, clammy feeling associated with some waterproof bedding. For added comfort and protection, look for a king mattress protector with a fitted-sheet design, secure elastic edges and deep pockets that accommodate the height of your mattress without slipping or bunching. The right waterproof mattress protector can also help keep your sleep environment fresher by shielding the mattress from body oils, skin flakes, dust and other everyday debris. Families, pet owners and anyone who enjoys breakfast in bed may appreciate the added layer of defense against accidental spills and stains. Before choosing a breathable king mattress protector, review its care instructions, waterproof coverage, fabric composition and pocket depth to find an option that suits your mattress and bedtime routine. Machine-washable designs make regular cleaning easier, while a soft, noiseless surface helps preserve the feel of your mattress without adding unwanted crinkling beneath your sheets.

What are breathable waterproof mattress protectors made of? + -

They typically combine a soft, breathable fabric surface with a waterproof membrane or backing. Common surface materials include cotton, polyester or blended fabrics, while the waterproof layer is often made from polyurethane.

How do breathable waterproof mattress protectors help regulate comfort? + -

Their moisture-resistant backing is paired with a fabric surface that allows air to circulate more freely than many fully coated materials. This design helps create a more comfortable sleep environment without adding substantial bulk.

Will a waterproof mattress protector change the feel of my mattress? + -

Most breathable waterproof protectors are designed with a thin, flexible construction so they can sit smoothly over the mattress without significantly changing its feel. Look for a fitted design and a low-profile finish for a closer fit.

How should I care for a breathable waterproof mattress protector? + -

Follow the care instructions on the product label. Many protectors can be machine washed and tumble dried on a low setting. Avoid bleach, fabric softener and high heat unless the manufacturer specifically allows them.

Can I use a breathable waterproof mattress protector with other bedding? + -

Yes. A mattress protector is typically placed directly over the mattress and under fitted sheets, mattress pads or other layers. Check the product's construction and care instructions before pairing it with additional bedding.