100% Waterproof King Size Mattress Topper, Thick Pillow Top
$62.99
Product Overview
This king size mattress topper is crafted to elevate your nightly rest with a blend of comfort, protection, and thoughtful design. Engineered for those who want to enhance their sleep experience without replacing their entire mattress, it features a luxurious pillow top layer that delivers instant softness and support. The deep pocket construction ensures a secure fit on mattresses up to 21 inches thick—perfect for most standard king-sized beds. Whether you’re seeking relief from back pain, refreshing an aging mattress, or adding a protective barrier against spills and wear, this waterproof mattress pad combines practicality with premium comfort.
Key Features
- 100% Waterproof Protection: A reliable waterproof barrier shields your mattress from sweat, accidental spills, and moisture buildup. This helps maintain a cleaner, healthier sleep environment and extends the life of your mattress by preventing stains and odors from penetrating the core.
- Thick Pillow Top Design: The plush cushioning offers immediate pressure relief, making it especially beneficial for side sleepers or anyone who prefers a softer sleeping surface. It gently conforms to your body, reducing point pressure and promoting more restful sleep.
- Deep Pocket Construction: Designed with an elasticized skirt that stretches over mattresses up to 21 inches deep, ensuring a tight, secure fit. This prevents shifting, bunching, or rolling during the night, so you wake up without adjusting your bedding.
- Breathable & Soft Fabric: Constructed from high-quality materials that promote airflow and wick away moisture. This breathable design helps regulate body temperature, keeping you cool and comfortable throughout the night—ideal for hot sleepers or warm climates.
- Machine Washable Care: Easy to clean and maintain. Simply toss the cover in the washing machine using cold water and mild detergent. Its durable construction ensures it holds up well through repeated washes without losing shape or effectiveness.
Technical Specifications
- Size: King (76″ x 80″)
- Dimensions: Fits mattresses up to 21 inches deep
- Thickness: Plush / Pillow Top (approximately 3–4 inches)
- Material Composition: Premium fabric blend with waterproof membrane
- Waterproof Layer: Yes, fully encapsulated
- Color Options: Beige, Black, White
- Care Instructions: Machine washable on gentle cycle; air dry or tumble dry low
- Compatibility: Suitable for memory foam, innerspring, latex, and hybrid mattresses under 21 inches thick
Benefits & Use Cases
Ideal for anyone looking to upgrade their sleep setup without the cost of a new mattress, this king-size mattress topper transforms an old or sagging bed into a supportive, comfortable retreat. Its thick pillow top layer provides excellent lumbar support and pressure point relief, making it particularly beneficial for individuals experiencing back pain or joint discomfort. The waterproof feature makes it a smart investment for families with young children, pets, or anyone concerned about nighttime accidents or humidity-related moisture.
The breathable fabric enhances airflow across the sleep surface, helping prevent overheating during warmer nights. This is especially valuable for couples where one partner runs hot—reducing night sweats and promoting undisturbed sleep for both sides of the bed. The deep pocket design ensures compatibility with a wide range of mattress types, including popular brands and models with thicker profiles, as long as they are under 21 inches deep.
Beyond comfort and protection, this mattress pad also preserves your investment by creating a protective barrier between you and your mattress. Over time, this can help reduce wear and tear, keeping your mattress looking newer and performing better for longer. The included care instructions ensure easy maintenance, so you can enjoy fresh, hygienic bedding with minimal effort.
Important Notes
This product is available in three neutral color options—beige, black, and white—allowing you to seamlessly match your bedroom décor. Each package includes one king-size mattress topper only; no additional accessories or pillowcases are included. For optimal performance and longevity, we recommend machine washing on a gentle cycle with cold water and mild detergent, then air drying or using a low-heat dryer setting. Please allow for minor variations in dimensions due to manual measurement processes, and ensure your mattress is clean and dry before placing the topper on.
8 reviews for 100% Waterproof King Size Mattress Topper, Thick Pillow Top
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Donna Molyneaux –
Comfy
Mattress cover is great- fits my Queen bed perfectly and is very cushy but not super soft to give me a comfortable sleep.
H. Murray –
⭐️⭐️⭐️⭐️⭐️ Super Comfortable, Supportive & Truly Waterproof
This PRIMESOFT mattress topper has made a noticeable difference in my sleep quality. It’s thick and plush without feeling too soft, and it adds just the right amount of cushioning and support—especially helpful for back pain. The fabric feels soft and breathable, so it doesn’t trap heat, and the waterproof layer gives great peace of mind without that crinkly plastic feel. The deep pockets fit perfectly on my queen mattress and stay securely in place, even with movement. It arrived well-packaged, fluffed up nicely, and looks clean and high quality. Highly recommend if you want extra comfort, protection, and a better night’s sleep.
Miz P. –
Comfortable and waterproof
I did actually end up spilled something on my bed shortly after putting this cover on my mattress. It protected the mattress well and was easy to wash. The protector doesn’t have that crinkly sound or plastic feel of other waterproof mattress protectors and in fact is super plush which makes sleeping more comfortable. Super happy with this
Crystal Hayes –
A comfortable touch
I’m not one for leaking but I’m able to sayThat the comfort is great 😊! The fit for the full size bed was spot on, I was able to fully pull elastic down over mattress not 1/2 way or to edge and hope 🙏 it doesn’t pop off during night. It is thicker than first expected.Overall this product suited my needs wonderfully.
Mary G –
Great quality
I looked up and down for something to add some plush to our Firm Tempur-pedic mattress. I like a firm mattress because I have chronic venous insufficiency and a plush mattress can be very painful on pressure points, also it helps with body alignment. But my husband and I are both side-slippers and a very firm mattress can be not so good for sleeping on your shoulder, so he has been complaining of shoulder pain because of that. Well, I had to find something that could add a little plushness for him but keep some firmness for me. A foam mattress topper is too expensive to add to an already expensive mattress so was checking padded mattress protectors and based on reviews and videos I decided to go with this. It fitted my queen mattress perfectly. Reviews are right in many things, it doesn’t have a bad smell when you open it, I wouldn’t say it has cooling qualities but also doesn’t feel that it gets much hotter, we’ll see in the summer. Despite it is just a padded protector it is very plushy, more than I expected, husband was very happy when he woke up. Also, it doesn’t goes flat from pressure. I was worried my sheets would not fit anymore because there was more padding than expected but I haven’t had that problem, I am impressed for what I paid, this has the quality of a much more expensive protector. I miss a little bit more of firmness but if husband is happy I’m ok with it. It served the purpose very well.
Mitch bass –
Super comfortable
I ordered this topper for our memory foam kind sized mattress thats gotten a little too firm for my liking. Easy to unpack, easy to put on bed, fluffed up perfect. Its not going to fluff up like a balloon be realistic. Its a pillow topper. Laid down this evening and for the first time since my surgery I was able to actually relax in my own bed. You can feel your spine relax i really wasnt aware how uncomfortable my bed alone was.No weird smell. No size issue. For the money you spend this is great. Perfect value for your money.
Katie –
Soft and Comfortable
This is great for the price! It provides a thick soft cushion to the bed in our extra room. It washed up nicely.
lovely1 –
Falls Short !! NOT Up to 24″ Maybe for 14″ Mattress. It doesn’t fit my 16.5″
I purchased this topper for my new (16 1/2″ ) thick Queen Hybrid Nova Foam Mattress.. The Title of this topper saysUP TO 24″ thick mattress..Its apparent that someone doesn’t know how to read a tape measure properly! I would say that this would be a Perfect fit for a 14″ mattress.Because the Queen topper Falls about 2 inches Short in Length AND Width on measurements just for the Top portion that lays ON THE TOP of your mattress…And while Trying to fit it to the underside of my 16 1/2″ SIXTEEN-HALF Mattress I was BARELY able to get the 4 corners to catch the underside of the mattress,which leaves the elastic riding up the Perimeter a couple inches, and not completely securing the topper properly to my bed.I really don’t get several of the reviews that say this is THICK as in Dense and supportive! Ummm NO, Its Soft, It doesn’t retain heat, It looks and feels nice Yes,,The filler is like those SUPER SOFT PUFFY PILLOWS, that as soon as you put your head on it, It flattens to a pancake under your head and you toss off of the bed.Again I don’t know where they’re getting the fits up to a 24″ UNLESS YOUR SUPPOSED TO SIZE UP WHEN ORDERING..Like if you have a Thick Queen size bed OVER 14″ then in order for it to fit properly you’d need to buy the King size topper for itIt does look nice though, Maybe someone had an off day or wasn’t feeling well when they made this and were functioning as a 70%er who knows.