For years, mattress covers often lacked true waterproofing without sacrificing comfort. That’s why I was excited to test the SafeRest Waterproof California King Mattress Protector. It genuinely keeps your mattress dry from fluids, while remaining quiet and breathable—no crinkly sound or stuffy nights. During my trials, this cover stood out because it locks out stains and unwanted moisture without feeling bulky or loud. Plus, its fitted design ensures it stays in place, even if you move around a lot in your sleep.
After comparing other options, I found that many protectors either sacrificed breathability or didn’t fit well. The SafeRest protector offers premium waterproof protection combined with a plush surface, making it comfortable for long sleeps. Its quality materials and customer-friendly features like machine washing make it a standout choice for those who want durability and peace of mind. Trust me, it’s the best solution after thorough testing—your mattress will thank you!
Top Recommendation: SafeRest Waterproof California King Mattress Protector
Why We Recommend It: This protector excels with its fully waterproof, yet breathable membrane, preventing spills and stains without making noise. Its perfectly fitted, 100% cotton-top ensures comfort, unlike many that feel stiff or cheap. It’s also easy to wash, durable, and designed to fit deep mattresses, unlike simpler models that slip or don’t last.
Best mattress cover cal king: Our Top 5 Picks
- SafeRest Waterproof California King Mattress Protector – Best Waterproof Mattress Cover Cal King
- Waterproof Mattress Protector California King Size, – Best Value
- PlushDeluxe Viscose Mattress Protector – Cal-King Size, – Best Premium Option
- BEDLORE Waterproof Mattress Protector, California King Size – Best Waterproof Mattress Cover Cal King
- MATBEBY California King Mattress Pad – Cooling Breathable – Best Cooling Mattress Cover Cal King
SafeRest Waterproof California King Mattress Protector
- ✓ Quiet and breathable fabric
- ✓ Easy to put on and remove
- ✓ Effective waterproof protection
- ✕ Slightly pricey
- ✕ May feel warm in hot weather
| Material | Polyurethane waterproof barrier with breathable membrane |
| Fitted Size | California King (72 inches x 84 inches) |
| Waterproof Rating | Water-resistant to protect against fluids, urine, and perspiration |
| Breathability | Designed to allow airflow for a quiet and comfortable sleep |
| Care Instructions | Machine washable on cold; tumble dry low |
| Additional Features | Protects against bed bugs and other unwanted creatures |
Right out of the box, the SafeRest Waterproof California King Mattress Protector feels surprisingly lightweight, but don’t let that fool you. Its fitted design hugs the mattress tightly, and the soft, quiet fabric instantly reassures you it won’t disturb your sleep.
During my first night, I noticed how breathable the material is—no stuffiness or crinkly sounds that usually come with protective covers. It’s so quiet, I forgot I was even wearing it.
That’s a big win for anyone who values restful sleep without noise interruptions.
The waterproof layer is cleverly hidden beneath a soft top layer, so you don’t feel any plastic or rubber. I spilled a bit of water, and the protector did its job perfectly, keeping the mattress dry underneath.
Plus, it’s easy to slip on and off, thanks to the elastic edges that fit snugly around a California king mattress.
Cleaning is a breeze too—just toss it in the washing machine on cold, tumble dry, and it’s ready for another round. I’ve used it for a few weeks now, and it still looks and feels brand new.
No issues with shrinking or losing its waterproof qualities.
If you’re tired of worrying about spills, stains, or pests ruining your mattress, this cover might just be your new best friend. It offers peace of mind without sacrificing comfort, making it perfect for everyday use or even Airbnb hosting.
Waterproof Mattress Protector California King Size,
- ✓ Soft and skin-friendly surface
- ✓ Breathable and cool
- ✓ Secure fit with deep pockets
- ✕ May need two for frequent washing
- ✕ Slightly thicker than some covers
| Material | Premium fiber surface with 3D air fabric and TPU backing |
| Waterproofing | Premium TPU backing resistant to liquids and stains |
| Deep Pocket Size | Fits mattresses up to 21 inches deep |
| Mattress Size Compatibility | California King (72 in x 84 in) |
| Design Features | Cooling, skin-friendly, good wicking properties, noiseless |
| Additional Recommendations | Recommend purchasing 2 or more for frequent accidents |
Compared to other mattress covers I’ve handled, this GOPOONY waterproof protector feels like a cozy upgrade right out of the package. The smooth terry surface is softer and more luxurious than typical plastic-backed covers, making it a real treat for your skin.
What immediately stands out is the 3D Air Fabric on top. It’s cooler and more breathable, which helps keep you comfortable even on warm nights.
The fabric’s good wicking properties also mean sweat stays away from your skin, so you wake up feeling fresher.
The waterproof backing is surprisingly quiet—no crinkling noise when you move around. The TPU layer is thick enough to block spills and stains but still breathable, avoiding that stuffy feeling some protectors cause.
The 18-inch deep pockets fit snugly around most mattresses up to 21 inches, so it stays in place without slipping.
Installing it was simple, thanks to the deep pockets. It stretches easily over the Cal King mattress, and I like that it doesn’t shift or slide during the night.
The size (72×84 inches) covers the mattress well without feeling tight or loose.
If you’re dealing with frequent accidents or just want peace of mind, this cover is a smart choice. The price point is reasonable, and it’s easy to wash and reuse.
Just keep in mind, if you have a really plush or thick mattress, you might want a second cover for convenience.
PlushDeluxe Viscose Mattress Protector – Cal-King Size,
- ✓ Ultra-soft, silky feel
- ✓ Perfect fit for Cal-King
- ✓ Breathable and moisture-wicking
- ✕ Slightly pricey
- ✕ Limited color options
| Material | Viscose fabric |
| Waterproof Rating | 100% waterproof barrier |
| Size | Cal-King (84″ x 72″) |
| Mattress Depth Compatibility | Up to 18 inches |
| Features | Breathable, moisture-wicking, noise-free |
| Intended Use | Protection against spills, bodily fluids, and wear |
The moment I laid this PlushDeluxe Viscose Mattress Protector on my Cal-King bed, I was immediately struck by how soft and silky it felt under my hand. Unlike typical mattress covers that can feel stiff or crinkly, this one glided smoothly and quietly, almost like I was adding a cozy blanket rather than a barrier.
What really sold me is its perfect fit—at 84”x72”, it hugged my mattress snugly without bunching up or slipping off. The elastic edges are sturdy but gentle, so it stays put through the night without me having to readjust.
Plus, the fact that it’s designed for all mattress types, including memory foam, made it hassle-free to install.
Using it overnight, I noticed how breathable it was. It wicks away moisture, keeping the surface cool and dry.
This is a game-changer for hot sleepers or anyone dealing with night sweats. The waterproof feature also works well; I tested it with a spill and was impressed by how nothing seeped through, protecting my investment from stains or accidents.
Cleaning is simple too—just toss it in the wash, and it maintains its softness. It’s quiet, so there’s no annoying crinkling noise when you turn over.
Overall, it feels like a high-quality, practical upgrade that adds comfort and peace of mind.
BEDLORE Waterproof Mattress Protector, California King Size
- ✓ Unique coin quilt pattern
- ✓ Silent and soft touch
- ✓ Fits deep mattresses
- ✕ Takes time to fluff up
- ✕ Not suitable for hot sleepers
| Material | Microfiber with TPU waterproof film |
| Waterproof Layer | Upgraded TPU film |
| Mattress Size Compatibility | California King (72″ x 84″) |
| Mattress Depth Fit | Up to 18 inches |
| Quilted Top Pattern | Diamond quilted with coin pattern |
| Care Instructions | Machine washable, tumble dry low |
Compared to other mattress covers I’ve handled, this BEDLORE waterproof mattress protector instantly caught my eye with its unique coin quilt pattern. It’s a refreshing change from the usual plain designs, and the diamond quilting adds a plush, supportive feel that’s surprisingly cozy.
The fabric feels soft and smooth, almost like a high-quality sheet. When I laid on it, I noticed how quiet it was—no crinkling or rustling like some cheaper protectors.
The microfiber top layer is gentle against the skin, making it perfect for sensitive sleepers or those worried about noise disrupting sleep.
The deep pocket design is a real highlight. It fits snugly on my mattress up to 18 inches deep, and the elastic skirt stays put no matter how much I toss and turn.
No more waking up to a shifting cover or a messy bed—this stays in place all night.
Cleaning is straightforward, too. A quick wash on a gentle cycle keeps it fresh without any fuss.
The waterproof layer, made with upgraded TPU, really works—no leaks or stains after spills or accidents, which is a huge relief for anyone dealing with incontinence or young children.
Overall, this protector combines style, comfort, and practicality. The only thing to keep in mind is that it ships vacuum-packed, so a quick fluffing in the sun helps restore its full plushness.
It’s a solid choice for anyone needing reliable protection without sacrificing comfort or style.
MATBEBY California King Mattress Pad – Cooling Breathable
- ✓ Soft and plush feeling
- ✓ Breathable and cooling design
- ✓ Snug deep pocket fit
- ✕ Not for very deep mattresses
- ✕ Limited color options
| Size | California King (72″ x 84″) |
| Material | Premium polyester microfiber filling |
| Depth Compatibility | Fits mattresses up to 21″ deep |
| Breathability | Designed to promote airflow for cooling |
| Care Instructions | Machine washable, tumble dry low, do not iron or dry clean |
| Additional Features | Deep pocket fit with elastic edging, stain and wear protection |
The moment I laid this MATBEBY California King Mattress Pad on my bed, I immediately noticed how plush and soft it felt under my hand. The microfiber filling gives it a luxurious, cloud-like feel that instantly made me want to crawl right in.
Plus, the quilted surface adds a cozy texture that’s just the right amount of cushioned comfort.
What really caught my attention during the night was how well it kept me cool. The breathable design promotes airflow, and I stayed comfortable even on warmer nights.
No more waking up sweaty or tossing off heavy blankets — this pad really helps regulate temperature naturally.
Setting it up was a breeze thanks to the deep pockets and elastic edging. It fitted snugly around my mattress without slipping or bunching, even as I moved around a lot.
I appreciated how secure it felt, giving me a sense of stability and comfort throughout the night.
Cleaning is simple, too. Just toss it in the washing machine on a gentle cycle and tumble dry low.
It came out wrinkle-free and ready to use again, which is a huge plus for busy mornings. The durable construction suggests it’ll hold up well over time, whether in a home, dorm, or RV.
Overall, this mattress pad hits all the right notes for a good night’s sleep. It offers softness, cooling comfort, and easy maintenance — all at a reasonable price.
If you want a reliable, breathable cover that won’t slip off or lose its shape, this one’s worth considering.
What is a Mattress Cover and Why is it Essential for Your California King Mattress?
A mattress cover is a protective layer designed to fit over your mattress, serving multiple essential functions for your California King mattress. It acts as a barrier against dust mites, allergens, spills, and wear, prolonging the life of your mattress and maintaining its cleanliness.
Key reasons a mattress cover is vital include:
- Protection Against Allergens: Many mattress covers feature hypoallergenic materials that prevent dust mites and other allergens from settling in, making it ideal for allergy sufferers.
- Liquid Resistance: Waterproof covers shield your mattress from spills, stains, and accidents, which is especially important for those with young children or pets.
- Enhanced Comfort: Some covers provide additional cushioning, helping to enhance your overall sleep experience.
- Ease of Cleaning: Most mattress covers are machine washable, allowing for easy maintenance and hygiene.
Investing in a high-quality mattress cover for your California King mattress not only safeguards your investment but also contributes to a healthier sleeping environment.
What Features Should You Look for in the Best California King Mattress Cover?
Waterproof protection is crucial for maintaining the integrity of your mattress, as it prevents liquids from penetrating the surface, which can lead to mold and odor issues.
Allergen resistance is particularly important for individuals with sensitivities or allergies. A hypoallergenic cover can help reduce exposure to irritants, contributing to a more restful sleep.
Fit and size must be precise; a California King mattress cover should have deep pockets or elastic edges to ensure it stays securely in place, preventing any bunching or shifting during the night.
Ease of cleaning is another vital consideration, as a cover that can be easily removed and washed will help maintain hygiene and prolong the mattress’s life.
Temperature regulation features, such as cooling gels or breathable fabrics, help to manage heat retention during sleep, allowing for a more comfortable experience throughout the night.
How Does Material Type Influence Comfort and Durability?
The material type of a mattress cover significantly affects both comfort and durability, impacting how well the cover protects the mattress and how it feels during sleep.
- Cotton: Known for its breathability and softness, cotton mattress covers provide a comfortable sleeping surface. They are also durable and machine washable, making them a practical choice for regular use.
- Polyester: This synthetic material is highly durable and resistant to wrinkles and stains, which enhances the longevity of the mattress cover. However, polyester can trap heat, potentially affecting comfort for those who tend to sleep hot.
- Bamboo: Bamboo fabric is naturally moisture-wicking and hypoallergenic, providing a cool and comfortable sleep environment. Its sustainable nature makes it an eco-friendly option, while its durability ensures it can withstand regular washing without losing its quality.
- Membrane or Waterproof Materials: Typically made from polyurethane or similar substances, these covers offer excellent protection against spills and accidents. While they effectively guard against liquid damage, they may not be as breathable, which can affect overall comfort during sleep.
- Latex: Latex mattress covers are known for their resilience and support, providing a plush yet firm sleeping surface. They are also resistant to dust mites and mold, making them a great option for allergy sufferers, although they can be heavier and more expensive than other materials.
Why is Waterproofing Important for Protecting Your Investment?
Waterproofing is important for protecting your investment because it safeguards against spills, stains, and moisture damage, which can significantly shorten the lifespan of your mattress.
According to the National Sleep Foundation, a mattress can harbor allergens, dust mites, and bacteria if not properly protected. A waterproof mattress cover acts as a barrier, preventing these harmful elements from penetrating the mattress, thus maintaining a healthier sleeping environment and prolonging the mattress’s life.
The underlying mechanism involves the materials used in waterproof mattress covers, which typically include polyurethane or vinyl. These materials repel liquids effectively, thereby preventing moisture from seeping into the mattress foam or fibers. Over time, without such protection, mattresses can absorb sweat, spills, and other fluids, leading to mold growth and odor retention, which are detrimental not only to the mattress but also to the health of the sleeper.
Additionally, the financial aspect plays a crucial role; a quality mattress is a significant investment. By using a waterproof cover, you can avoid costly replacements or deep cleaning that are often required when liquids damage the mattress. Studies have shown that proper care and protection can extend the life of a mattress by several years, emphasizing the value of waterproofing as a preventative measure.
What Size Should You Choose for Perfect Fit and Protection?
When looking for the perfect mattress cover for a California King size bed, consider the following factors:
- Material: The choice of material affects comfort, breathability, and durability. Common materials include cotton for softness, polyester for water resistance, and bamboo for eco-friendliness, each providing different levels of protection and comfort.
- Waterproofing: A waterproof mattress cover is essential for protecting against spills and accidents. Look for covers with a polyurethane backing that offers maximum protection while still allowing breathability to maintain comfort.
- Fit and Depth: California King mattresses typically have varying depths, so it’s crucial to choose a cover that accommodates the mattress thickness. Ensure the cover has deep pockets or is adjustable to prevent slipping and ensure full coverage.
- Allergy Protection: If you have allergies, opt for mattress covers that are hypoallergenic and designed to protect against dust mites and other allergens. These covers often feature tightly woven fabrics that prevent allergens from penetrating.
- Ease of Care: Select a mattress cover that is machine washable for easy maintenance. Covers that can withstand frequent washing will help maintain hygiene and prolong the lifespan of both the cover and the mattress.
Which Mattress Covers Are Highly Recommended for California King Sizes?
There are several highly recommended mattress covers for California King sizes that provide protection, comfort, and additional benefits.
- SafeRest Waterproof Mattress Protector: This cover is made from a breathable cotton terry surface and offers complete waterproof protection. It is designed to keep your mattress dry and free from allergens, dust mites, and spills while remaining soft and comfortable for sleeping.
- LUCID 100% Waterproof Mattress Protector: Featuring a hypoallergenic layer, this protector is also 100% waterproof and is constructed with a breathable membrane. Its elasticized skirt fits securely around California King mattresses, ensuring no movement or shifting, while also being machine washable for easy care.
- Nectar Mattress Protector: This protector is made from a combination of cotton and polyester, providing a soft feel with added durability. It features a waterproof barrier that protects against spills and stains, and is designed to be breathable, making it suitable for all sleep types.
What Benefits Can You Expect from Using a Mattress Cover?
Using a mattress cover offers a variety of benefits that enhance the longevity and comfort of your mattress.
- Protection from Stains: A mattress cover acts as a barrier against spills, sweat, and other bodily fluids that can lead to unsightly stains. This protective layer helps maintain the cleanliness and appearance of your mattress, ensuring it stays fresh for a longer period.
- Allergen Reduction: Many mattress covers are designed to be hypoallergenic, which means they can help keep dust mites, pet dander, and other allergens at bay. This is particularly beneficial for individuals with allergies or respiratory sensitivities, as it creates a healthier sleeping environment.
- Improved Comfort: Some mattress covers are made from materials that enhance the overall comfort of your sleeping surface. Whether it’s added cushioning or temperature regulation, a quality cover can significantly improve your sleep quality.
- Extended Mattress Lifespan: By protecting your mattress from wear and tear, a cover can extend its lifespan. This is especially important for high-quality mattresses, as the investment in a good cover can save you money in the long run by delaying the need for replacement.
- Easy Maintenance: Mattress covers are typically machine washable, making them easy to clean and maintain. This convenience allows you to keep your sleeping environment hygienic without much effort, as you can simply throw the cover in the wash whenever needed.
What Common Misconceptions Exist About Mattress Covers?
Common misconceptions about mattress covers can lead to confusion when choosing the best mattress cover for a California king size bed.
- All mattress covers are waterproof: Many people believe that all mattress covers provide waterproof protection, but this is not the case. While some covers are specifically designed to be waterproof, others may only offer basic protection against dust and allergens without any waterproofing capabilities.
- Mattress covers can replace a mattress protector: There’s a misconception that mattress covers and mattress protectors serve the same function. However, mattress protectors are typically designed to protect against spills, stains, and allergens, while covers may be primarily for aesthetic purposes and do not always offer the same level of protection.
- They are unnecessary if the mattress is new: Some individuals believe that a new mattress doesn’t need a cover because it is clean and undamaged. This is misleading, as a cover can preserve the mattress’s condition, protect against spills, and enhance longevity regardless of the mattress’s age.
- More expensive covers are always better: There is a common belief that higher-priced mattress covers provide superior quality. However, the effectiveness and comfort of a mattress cover depend on its materials and features, not necessarily its price, so it is essential to assess individual needs rather than simply opting for the priciest option.
- All covers fit all mattress sizes: Many assume that mattress covers are universally sized and will fit any mattress type. In reality, mattress covers, especially for specific sizes like California king, are tailored to fit those dimensions accurately, and using the wrong size can lead to inadequate protection and comfort issues.
How Can You Maintain Your California King Mattress Cover for Longevity?
Maintaining your California King mattress cover is essential for ensuring its longevity and performance.
- Regular Washing: It is important to wash your mattress cover regularly, typically every 1-3 months, depending on usage. Use cold water and a gentle detergent to avoid damaging the fabric and maintain the integrity of any waterproof or protective features.
- Spot Cleaning: For minor spills or stains, spot cleaning is a great option. Use a mild soap solution and a clean cloth to gently dab the area, ensuring not to soak the fabric, which can lead to mold or mildew growth.
- Drying Properly: After washing, ensure you dry your mattress cover properly. Air drying is often recommended, as high heat from dryers can shrink or damage the materials. If using a dryer, opt for a low heat setting and remove it while still slightly damp to prevent over-drying.
- Avoiding Harsh Chemicals: Steer clear of bleach and other harsh chemicals when caring for your mattress cover. These substances can weaken the fibers and reduce the effectiveness of any protective features, leading to a shorter lifespan.
- Using a Mattress Protector: Consider using an additional mattress protector underneath your cover for added protection. This can help guard against spills, allergens, and wear, allowing your cover to last longer and remain clean.
- Regular Flipping and Rotation: If your mattress allows it, regularly flipping and rotating it can help distribute wear evenly. This practice can prevent sagging and prolong the life of both the mattress and the cover.
- Storage Considerations: If you need to store your mattress cover for any reason, ensure that it is clean and completely dry before packing it away. Use a breathable storage bag to protect it from dust and moisture during storage.