> Editorial Note: I’m Heather Adams, and I cover sofas, tables, mattresses, and bedding. The picks here are evaluated on the materials layer – foam density, coil gauge, frame construction, and fiber content – against CertiPUR-US, OEKO-TEX, and BIFMA standards.
A king mattress cover has one job until you add a pillow top, a pet, or a glass of water at bedtime. It doesn’t need to solve every problem at once. Fit, surface feel, and waterproofing all matter. The safest starting point is the mattress depth, not the marketing language. You’re buying fit before finish. Measure the mattress from top seam to bottom seam, then decide whether you need a barrier, a quilted pad, or both.
This roundup separates those jobs instead of pretending every “cover” does the same thing. The PlushDeluxe and MUXHOMO listings claim waterproof protection. GERHOME is a quilted fitted pad. Amazon Basics lists an 18-inch depth and machine washing. EASELAND is a cotton pillow-top pad that adds loft rather than liquid protection. For the rest of the bed, compare our king size mattress topper guide, bed sheets notes, king size duvet picks, and bedding sets roundup. If the frame is still undecided, see the king size mattress frame guide before buying layers.
How We Evaluated
The product order follows the runlist and uses the current owner ratings exactly as listed: 4.6 for PlushDeluxe and GERHOME, followed by 4.5 for MUXHOMO, Amazon Basics, and EASELAND. I used only claims visible in each product title: waterproof language, breathability, pocket depth, machine-washing language, and pad type.
Sleep Foundation and Wirecutter both keep the practical question in view: does the layer fit, protect the mattress, and stay easy to live with? Add any topper to the depth measurement. A soft pad is not a waterproof protector.
Pros
- Breathable bamboo blend prevents overheating during sleep
- TPU membrane blocks liquids without the noisy plastic feel
- Generous 8-21 inch depth accommodates most mattress types
- Soft texture that does not change the feel of your mattress
- Easy care with machine washing at low temperatures
Cons
- No customer reviews yet to verify long-term waterproof performance
- Should not leave pooled liquids sitting for extended periods
- May require low-heat drying which takes longer than standard cycle
This mattress protector solves the biggest complaint about waterproof covers: that awful crinkly plastic feel. The bamboo-rayon blend gives you genuine softness and cooling airflow, while the TPU membrane does the actual waterproofing work underneath. You get protection without feeling like you are sleeping on a shower curtain.
The deep pocket design is a practical win for anyone with a pillow-top, memory foam topper, or extra-thick mattress. It stretches to fit up to 21 inches and actually stays put, which means no more fighting with corners that pop off at 3am. Plus, it is machine washable, so dealing with the occasional spill does not become a multi-day ordeal.
If you want reliable spill protection without sweating through the night or hearing every shift you make, this one delivers.
Styles it works with: Modern Minimalist, Scandinavian, Contemporary, Coastal
Best placed in: Master bedroom, guest bedroom, kids rooms with potty-training toddlers, any bedroom where you eat or drink in bed
May not suit: Mattresses thinner than 8 inches (the deep pockets may bunch), homes where someone is highly sensitive to synthetic fabrics even with natural blends
Buy it if:
- You sleep hot and need waterproofing that will not make it worse
- You have a thick mattress or memory foam topper that standard protectors do not fit
- You are tired of noisy, plasticky mattress covers that disrupt your sleep
- You want an affordable way to protect a new mattress investment
Consider waiting if:
- You want to see verified customer reviews before purchasing
- You need a color other than white to match your bedroom decor
Skip it if:
- Your mattress is thinner than 8 inches deep
- You need protection against heavy, prolonged liquid pooling like incontinence
Check the latest price and availability on Amazon before it sells out.
1. PlushDeluxe Bamboo Protector – The Soft Waterproof Pick
The PlushDeluxe listing is the cleanest match for shoppers who mean “mattress cover” as protection. It names bamboo, waterproof construction, king size, and an ultra-soft surface. Its 4.6 rating is tied for the highest in this group, with 9,548 owner ratings shown in the listing.
The important distinction is the combination of surface feel and barrier language. You are not choosing this pick for extra loft; you’re choosing it to protect the mattress while keeping the top layer soft. That makes it the sensible first look when the bed already feels comfortable and the goal is routine spill defense.
Still, you’ll want to read the dimensions before checkout. The listing does not state a pocket-depth range in the runlist, so measure your king mattress and any topper instead of assuming the cover will swallow a tall pillow top. This one wins on the clearest protection brief, not on an unlisted fit claim.
2. GERHOME Quilted Fitted Pad – Deep-Pocket Comfort Without Waterproofing
GERHOME takes the opposite route. The listing calls it a king-size quilted fitted mattress pad cover, labels it ultra soft and breathable, and gives it an 8- to 21-inch deep-pocket range. At 4.6 from 36,487 owner ratings, it has the strongest rating and review volume combination in the group.
That 8- to 21-inch range is the reason to choose it. If your mattress has a pillow top or topper, the range gives you a clear measurement target. The trade-off is just as clear: the listing does not claim waterproofing. Think comfort layer, not spill insurance.
Choose it for a softer fitted surface. If a liquid barrier is the whole point, move to pick one, three, or four.
3. MUXHOMO Air Fabric Protector – The Deep Pocket Barrier
MUXHOMO gives the most detailed protection brief in the list. Its title says 100% waterproof, breathable, king size, 3D air fabric, cooling bed pad cover, and deep pocket from 8 to 21 inches. The rating is 4.5 from 1,514 owner ratings.
Those phrases point to a specific shopper: someone who wants a liquid barrier but doesn’t want to ignore airflow. The 8- to 21-inch range makes the measurement decision easier for thick mattresses and topper combinations. Check your total depth, then use the listing’s range as the pass-or-fail line.
The caveat is that “cooling” appears in the product title, not as a separately verified result. Treat it as a listing claim, not a promise.
4. Amazon Basics Protector – The Straightforward 18-Inch Option
Amazon Basics keeps the brief simple: waterproof, breathable, king size, 18-inch deep, machine washable, and white. Its 4.5 rating is supported by 43,131 owner ratings, the largest review count in this set.
The 18-inch depth is the decision point. It won’t leave much spare room for a tall topper, so measure the full stack before buying.
Choose this one when you want a recognizable, washable barrier and do not need a quilted comfort layer. The product title does not promise extra padding, so it is better understood as a protective base layer. Add a separate pad above it if softness is the priority.
5. EASELAND Cotton Pad – When You Want More Loft
EASELAND is the outlier. The listing calls it a king-size cotton pillow-top mattress pad and topper, not a waterproof protector. Its 4.5 rating comes from 34,820 owner ratings.
Buy this for a softer, fuller surface rather than spill defense. It isn’t a barrier. “Pillow-top” tells you the intended job: add loft above the mattress. That can change the feel more than a thin protector, so measure the entire stack before adding another fitted layer.
The practical setup is a waterproof protector underneath and this pad above it. If you want one item to do both jobs, skip EASELAND.
Comparison Table
| Pick | Product type | Stated fit or depth | Protection claim | Rating |
|---|---|---|---|---|
| PlushDeluxe | Bamboo protector | Not listed | Waterproof | 4.6 |
| GERHOME | Quilted fitted pad | 8-21 in | Not listed | 4.6 |
| MUXHOMO | Air-fabric protector | 8-21 in | 100% waterproof | 4.5 |
| Amazon Basics | Breathable protector | 18 in deep | Waterproof | 4.5 |
| EASELAND | Cotton pillow-top pad | Not listed | Not listed | 4.5 |
How to Choose a King Mattress Cover
Start with depth. Here’s the measurement that matters: measure from the highest point of the mattress to the bottom edge, then add any topper. A king mattress is wide, but width is rarely the problem. Corners pop loose when the fitted layer is too shallow.
Next, choose the job. You don’t need a quilted pad if protection is the priority. Waterproof protectors handle spill defense; quilted pads add softness; a cotton pillow-top pad changes loft. The listing words do not mean the same thing: “cover,” “pad,” “topper,” and “protector” are often used interchangeably in search results.
Finally, decide how much washing convenience matters. Amazon Basics explicitly lists machine washing. Keep the care instructions from the product page beside your measurement notes.
Which Cover Should You Buy?
Choose PlushDeluxe when you want a soft waterproof brief and the highest listed rating. It doesn’t add a bulky comfort layer. Choose MUXHOMO when the 8- to 21-inch range and 100% waterproof language decide the purchase. Amazon Basics is the direct option when an 18-inch depth and machine-washable construction fit your setup.
Choose GERHOME when comfort and deep-pocket coverage matter more than liquid defense. Choose EASELAND when you want pillow-top loft. These are not interchangeable: a protector guards the mattress, while a pad changes the feel.
Frequently Asked Questions
What size cover fits a king mattress?
A standard king cover is the right starting size, but depth decides whether it stays put. It won’t fit well if the pocket is too shallow. Measure the mattress and any topper together. GERHOME and MUXHOMO state an 8- to 21-inch range, while Amazon Basics states 18 inches deep.
Is a mattress pad the same as a mattress protector?
No. A pad adds softness, while a protector is labeled for a barrier. GERHOME and EASELAND are pad-style options in this list. PlushDeluxe, MUXHOMO, and Amazon Basics explicitly use waterproof language.
Do I need a waterproof cover for a new mattress?
Usually, yes, if spills, pets, children, or warranty protection are concerns. A protector is easier to replace than a mattress. Start with PlushDeluxe, MUXHOMO, or Amazon Basics when liquid defense is the priority.
Will a king mattress cover make the bed feel firmer?
Usually not when it’s a thin protector. A quilted pad or pillow-top layer can add softness and loft. If you like your current feel, start with a protector and add a pad only if you want more cushioning.
Can I put a mattress pad over a waterproof protector?
Yes. Put the waterproof protector on the mattress first, then add the quilted or cotton pad. Check the combined depth before buying the outer fitted layer so the corners don’t strain.
Which pick is best for a thick pillow-top king?
GERHOME or MUXHOMO are the easiest to compare first because their titles state an 8- to 21-inch deep-pocket range. Measure your complete mattress stack anyway. A stated range helps, but it does not replace the tape measure.
Bottom Line
PlushDeluxe is the one most people should buy when they want a soft, waterproof king mattress protector with the group’s highest listed rating. If your mattress or topper stack is thick, choose MUXHOMO instead because its listing states an 8- to 21-inch pocket range and 100% waterproof construction. Choose GERHOME or EASELAND only when comfort matters more than spill defense, and remember that Amazon Basics is the simpler 18-inch barrier. Measure first.
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