100% Waterproof Mattress Protector California King Size

From $258.99 $179.99 Save 30%

Learn more

Color:Crisp WhiteBest Seller

Crisp White New

Size:California King

Size Guide

Crib 28"x52" Twin 39"x75" Queen 60"x79" King 76"x79"

California King 84"x72"

Full 54"x75"

Order today for the fastest delivery:

Aug 20 - Aug 24

Free shipping for covers:

on all orders over $99

You might also like

This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.

Specifications

Give your bed the protection it deserves with our California King mattress protector, expertly designed for larger mattresses. Made from 100% soft polyester and enhanced with Wavy Proof™ and WavyTech™ technologies, it delivers quiet, breathable protection without compromising comfort. Its breathable layers promote airflow, while the smooth, noiseless surface ensures uninterrupted sleep. Ideal for preserving mattress quality and comfort over time.

Shipping & Returns

All items are stored and dispatched from our US warehouses, Monday through Friday. Orders placed by 3 PM EST will be processed the same day. Orders placed after this time will be processed the next business day. Expect your order to arrive within 3 to 5 business days. Please keep in mind that weekends and public holidays are excluded from our shipping schedule.

Orders over $99 come with free shipping within the contiguous US. For other cases, the shipping fee is determined by the carrier's rate. Deliveries within and outside the contiguous US are made through UPS.

We also offer a 30-day money-back guarantee on all our items. Therefore, if you wish to return your purchase for any reason within this period, you are free to do so. For more information, explore our Shipping Policy and Returns and Exchanges page.

While we're currently unable to fulfill international orders, we value our Canadian customers and have a dedicated site just for you! Simply visit mammamiacovers.ca to find the perfect products tailored to your needs.

Product Comes with

Mattress Protector Size California King
x1 Cover
x1 Installation Instructions Booklet

Microfibra Collection

Our most popular and best-selling collection offers the perfect blend of style, comfort, and durability. Made of 100% soft and lightweight polyester, this is the ideal choice for pet owners and families with kids.

Superior protection from dust and dirt
Prevents pets from scratching
Soft-touch material
Excellent durability and ease of care

Velvet Collection

This collection features a soft, plush texture crafted from 100% velvety polyester, offering style and functionality. Unique small ruffles create a distinctive flat look, making it the only collection with this effect.

Excellent durability and ease of care
Luxury look and supreme quality
Flat look ruffles
Plushy velvet

Jacquard 3d Collection

This unique 3D-patterned collection seamlessly blends classic designs with a contemporary touch. Crafted from a blend of 60% cotton, 35% polyester, and 5% elastane, jacquard is the only one of its kind.

Breathable fabric
Best solution for leather furniture
Unique 3D pattern
Heavy-duty, durable, and thick fabric

Fuco Velvet Collection

This modern design collection is crafted from 100% soft and cozy polyester. Featuring large ruffles that enhance stretchability, it combines contemporary style with exceptional comfort.

Excellent durability and ease of care
Large and defined ruffles
Soft-shine effect
Plushy velvet

Mille Righe Collection

Meaning “thousand lines” in Italian, it reflects unique patterns that bring charm to your space. Crafted from a perfect blend of 60% cotton and 40% polyester, this fabric goes the extra mile in protecting your furniture, especially leather pieces.

Breathable fabric
Best solution for leather furniture
Unique thousand-line pattern
Soft-touch material

Microfibra Printed Collection

This collection offers a variety of subtle yet striking prints that add a touch of personality. Made of 100% soft polyester with outstanding stretchability properties, making it a breeze to update your space.

Unique earthy patterns
Superior protection from dust and dirt
Prevents pets from scratching
Soft-touch material

Fuco Cotton Collection

Made of 100% organic cotton, these slipcovers are embracing an eco-lifestyle. An ideal choice for conscious, quality-driven interiors.

Breathable fabric
Large and defined ruffles
Organic
Soft-touch material

Goffrato Velvet Collection

It combines the best features from our bestsellers to endure the rigors of daily use. Crafted from 100% velvety polyester, it’s the ideal choice for busy homes that prioritize comfort and coziness.

Excellent durability and ease of care
Rich texture
Soft-shine effect
Plushy velvet

100% Waterproof Mattress Protector California King Size

$258.99 $179.99

FEATURES

HOW TO MEASURE

CARE INSTRUCTIONS

ITALIAN-MADE EXCELLENCE FOR CALIFORNIA KING BEDS:

Made in Italy, our California King mattress protector brings together fine craftsmanship and modern innovation. Built with WavyProof™ and WavyTech™ technology, its 4-layer structure delivers premium waterproof protection without sacrificing breathability or softness. Designed to preserve the natural comfort of your bed, it’s a smart upgrade for any California King mattress.

SAFE FOR SENSITIVE SKIN & ALLERGY-FRIENDLY:

Crafted from 100% polyester and certified by OEKO-TEX, this mattress cover is free from harsh chemicals and artificial scents. It’s ideal for those with sensitive skin, children, or anyone seeking a cleaner, more hygienic sleep environment.

ADVANCED LIQUID BARRIER:

From nighttime accidents to sweat and spills, the inner absorbent layers act quickly to stop moisture in its tracks. This California King mattress protector keeps your mattress dry and helps reduce the buildup of odors, stains, and allergens.

SILENT & COMFORTABLE REST:

No noisy crunching or discomfort here — just smooth, quiet protection that enhances airflow and supports deep sleep.

EFFORTLESS CARE & MADE TO LAST:

This protector holds up to regular laundering while maintaining its shape and effectiveness. The California King mattress cover offers long-term durability and effortless care.

California King Mattress Protector That Fits Like a Dream

Perfect Fit

Our California King mattress protector fits seamlessly, providing a secure and snug hold around your mattress.

Full Coverage

It offers complete protection against spills, dust, and daily use.

Sleek and Secure

The mattress protector California King maintains a tailored look, keeping your bed fresh and protected.

In Stock & Ready to Ship

All items are in stock in our US warehouses

Free Shipping

On all orders over $99

Moneyback Guarantee

Within 30 days for an exchangeGET $10 OFF

Shop by Furniture Type & Size

Sofa Covers

Chair Covers

Recliner Covers

Sectional Sofa Covers

Chaise Lounge Covers

Office Chair Covers

Bed Headboard & Frame Covers

FAQ

Is this California King mattress protector compatible with all mattress types?

Yes, this protector is thoughtfully designed to fit standard and deep California King mattresses. Whether your bed is a memory foam, hybrid, or traditional innerspring model, the flexible elastic edges offer a snug, tailored fit that stays put — even if you toss and turn during sleep.

Does the California King waterproof mattress protector provide good breathability and protection?

Absolutely. Our cover features a four-layer construction powered by Wavy Tech™ innovation. It effectively blocks moisture, spills, and stains with a waterproof bottom layer while allowing air to circulate through the upper layers. This ensures a cool and breathable sleeping experience without trapping heat.

Will it alter the feel or sound of my mattress?

Not at all. This California King mattress protector has a soft, cloud-like surface that preserves the comfort of your mattress. Unlike cheaper alternatives that rustle or feel plasticky, our design is silent and smooth, providing a restful night’s sleep without distractions or discomfort.

Can it withstand frequent washing and still keep its shape?

Yes, it can. Crafted from durable, high-quality polyester, this protector resists shrinking, bunching, or stretching. Even after repeated washes, the protector maintains its original shape and elasticity, making it a long-lasting solution for mattress protection.

How thick is the waterproof mattress protector for California King beds?

This protector has a balanced medium thickness. It's slim enough to go unnoticed beneath your sheets while still offering dependable defense against liquids, sweat, and everyday messes.

Is it safe to use in households with kids or pets?

Definitely. This waterproof mattress protector California King is an excellent choice for families with children or pets. It protects against fur, bedwetting accidents, food spills, and allergens, keeping your mattress fresh, clean, and odor-free.

Is it machine washable and easy to maintain?

Yes. Our mattress protector is both machine washable and dryer-safe. Use mild detergent and avoid bleach or fabric softeners to preserve the waterproof layer. For best results, wash it every 1–2 months or right after any spills or accidents.

Does it help reduce exposure to allergens and dust mites?

Yes, the California King mattress cover creates a barrier that helps prevent allergens, dust, and debris from settling into your mattress. It's especially ideal for those with allergies or sensitive skin, as it's free from harmful chemicals and fragrances.

Can it be used in guest rooms, hotels, or Airbnb setups?

Absolutely. Whether you're outfitting a luxurious guest room or upgrading your bed, this waterproof mattress protector adds both cleanliness and comfort to any sleeping space.