100% Waterproof King Size Mattress Topper, Thick Pillow Top
$62.99
Product Overview
This king size mattress topper delivers a perfect blend of comfort, protection, and durability for your sleep experience. Engineered with a 100% waterproof barrier, it creates an effective shield against spills, pet accidents, allergens, and moisture—keeping your mattress clean and hygienic night after night. The thick pillow top design adds a luxurious layer of softness that gently cradles your body, helping to alleviate pressure points and improve spinal alignment. Ideal for deep mattresses up to 25 inches thick, this pad fits securely without slipping or shifting, thanks to its deep pocket construction. Made with breathable materials, it ensures optimal airflow throughout the night, preventing overheating so you can enjoy cooler, more restful sleep. Whether you’re dealing with back pain, upgrading an old mattress, or simply seeking added comfort, this topper enhances your bedding setup with both function and elegance.
Key Features
- 100% Waterproof Protection: A fully sealed waterproof barrier prevents liquids from penetrating through to the mattress, offering reliable defense against leaks, dribbles, and moisture buildup.
- Thick Pillow Top Design: Generously padded with high-density foam, this topper provides a plush surface that reduces joint pressure and enhances overall comfort for a more soothing sleep.
- Deep Pocket Construction: Designed to stretch and fit snugly over mattresses up to 25 inches deep, ensuring a secure grip that stays in place regardless of movement during sleep.
- Breathable & Soft Fabric: The outer cover is made from a premium fabric blend that allows air circulation while maintaining a soft, touch-friendly texture against your skin.
- Machine Washable Cover: For easy maintenance, simply remove and machine wash the waterproof cover on a gentle cycle to keep it fresh and odor-free.
Technical Specifications
- Size: King (76″ x 80″)
- Waterproof Rating: 100% (fully sealed construction)
- Pocket Depth: Up to 25 inches (ideal for thick mattress sets, memory foam, or pillow-top beds)
- Material: Premium fabric with integrated waterproof lining
- Color Options: Black, White, Beige
- Care Instructions: Machine washable cover; avoid bleach and fabric softeners
- Compatibility: Fits standard king-sized mattresses
Benefits & Use Cases
This mattress topper is especially valuable for individuals who prioritize both comfort and hygiene in their sleep environment. Its waterproof feature makes it an excellent choice for families with young children, pets, or elderly members who may experience occasional nighttime accidents. By creating a protective barrier, it helps extend the life of your mattress while maintaining a clean sleeping surface.
The thick pillow top layer offers targeted support for those experiencing back pain, joint discomfort, or stiffness upon waking. The extra cushioning helps distribute body weight evenly, reducing stress on sensitive areas and promoting deeper, more restorative sleep. This makes it a preferred option for side sleepers, older adults, or anyone seeking gentler support from their mattress.
The deep pocket design ensures compatibility with a wide range of mattress types, including those with high-profile bases, adjustable foundations, or multiple comfort layers. Its neutral color palette—available in Black, White, and Beige—allows it to blend seamlessly into any bedroom décor, whether modern, minimalist, or traditional.
Thanks to its breathable construction, this topper helps regulate temperature during warmer nights, preventing the buildup of heat that can disrupt sleep. It’s also convenient for use in guest rooms, college dorms, or temporary living situations where direct mattress contact needs to be minimized.
Whether used alone as a full protective layer or layered under fitted sheets for enhanced softness, this topper adapts to various sleep preferences and lifestyle needs. It’s designed for long-term use, providing consistent comfort and protection without losing shape or effectiveness over time.
Important Notes
- The waterproof barrier covers both the top and underside of the topper, offering comprehensive protection from all angles.
- Always measure your mattress depth before purchasing to ensure it falls within the 25-inch limit for proper fit.
- For optimal care, wash the removable cover separately using mild detergent—avoid bleach, which can degrade the waterproof membrane.
- Allow the topper to air dry completely before placing it back on the bed to preserve the integrity of the materials and prevent mold or mildew.
- Package includes one king-size mattress topper; no additional accessories such as pillow protectors or sheet sets are included.
- Designed for single-layer use—do not combine with other thick toppers, as this may exceed the pocket depth and cause slipping.
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.