The BEDSUM Waterproof King Mattress Protector may suit you if you need a washable waterproof layer for a deep king mattress: the current listing says it fits mattresses up to inches thick and measures x inches. The price is £20.62, but the material descriptions vary across the listing and the available information doesn’t establish a warranty or return period for this offer.
- The current product details give dimensions of x inches and a maximum mattress depth of inches.
- The listed price is £20.62.
- The listing describes a waterproof TPU membrane, but the product description and specifications give different material details.
- Care instructions call for a cold delicate machine wash and air drying or tumble drying on low; the cover should be completely dry before use.
- The Amazon.com page claims OEKO-TEX STANDARD certification and gives certificate number 2023OK1318; the available information doesn’t independently verify it.
What materials and waterproof barrier does the BEDSUM Waterproof King Mattress Protector use?
The BEDSUM Waterproof King Mattress Protector is described as having microfiber fabric and a breathable waterproof TPU membrane. The product description also calls the surface a PIMA-cotton terry surface over 100% Coolmax polyester knit fabric. Those are listing claims, not materials we independently verified.
The specifications give a different level of detail: they list polyester as the material type, 100% polyester filling, and a bottom made from 50% PP non-woven fabric and 50% TPU film. The Amazon.ca listing separately identifies polyester as the listed material and says the pad uses a TPU membrane.
For the BEDSUM Waterproof King Mattress Protector, treat the fabric description and the construction specification as separate pieces of listing information rather than a single confirmed material breakdown. The BEDSUM Waterproof King Mattress Protector is listed with a TPU waterproof layer, but the available details don’t resolve the differences in how its top fabric is described.
What are the BEDSUM protector’s dimensions, and what mattress depth can its fitted skirt accommodate?
The current product details list the BEDSUM Waterproof King Mattress Protector as x inches and say it fits mattresses up to inches thick. Those figures differ from earlier listing details: an Amazon.com entry gives a x 80-inch king size, an 18-inch side profile, and a fit range of to inches.
The Amazon.ca listing also gives a x 80-inch size, but its stated mattress-depth range is 8–18 inches. The BEDSUM Waterproof King Mattress Protector therefore has conflicting size and fit information across the available listings. Check the exact version and its current product details before ordering, especially if your mattress is deep.
The current description says the cover is not California King. It also says that the mattress and fitted sheet aren’t included. The BEDSUM Waterproof King Mattress Protector is one cover, so confirm both the size label and the dimensions rather than relying on the word “King” alone.

How does the BEDSUM protector prevent urine and other liquids from reaching the mattress?
The BEDSUM Waterproof King Mattress Protector is advertised with a TPU membrane intended to block fluids such as sweat and urine from reaching the mattress while allowing the cover to breathe. The Amazon.ca listing also describes its waterproof layer as protection against sweat, urine, and accidental spills.
That protection has an important stated limit. The product description says the cover is intended for small amounts of liquid that are addressed immediately; larger amounts or liquid left for a long time may eventually seep through as vapor. So the BEDSUM Waterproof King Mattress Protector’s waterproof claim shouldn’t be read as a tested guarantee for every spill, quantity, or duration of exposure.
The available information describes the intended barrier, but doesn’t report independent liquid testing. If you’re choosing the BEDSUM Waterproof King Mattress Protector for accidents, note the listing’s prompt-cleanup caveat and consider that its stated protection has limits.
How should the BEDSUM Waterproof King Mattress Protector be washed and dried?
The BEDSUM Waterproof King Mattress Protector’s current care instructions say to machine wash it cold on a delicate cycle, then air dry it or tumble dry it on low. The cover should be completely dry before use. These are listing instructions; no independent laundering test is available here.
The listing also says not to use bleach, fabric softener, or dryer sheets, and not to iron or dry clean the cover. Earlier Amazon.com care details likewise specify a cold machine wash and low tumble drying, and warn against ironing, bleach, and fabric softener.
For the BEDSUM Waterproof King Mattress Protector, follow the more detailed current instructions if they appear on the version you’re buying, including the complete-drying step. The BEDSUM Waterproof King Mattress Protector is listed as machine washable, but the available information doesn’t establish how its materials perform after repeated washes.

What is the BEDSUM protector’s listed price, and what warranty or return policy applies?
The listed price for the BEDSUM Waterproof King Mattress Protector, Extra Deep, Smoke Grey is £20.62. Price alone doesn’t establish whether the cover suits your mattress; the size and depth figures differ between listings, so check the details for the offer you’re considering.
The available Amazon.com listing says dissatisfied customers may email the seller, which says it will reply within hours. That listing doesn’t state a warranty or return period. It would be inaccurate to assume that the current offer includes a particular warranty or return window from this information.
A separate Amazon.ca listing mentions a 90-day replacement and a 90-day manufacturer warranty. Those terms come from a different marketplace listing and may not apply to this offer. Before ordering the BEDSUM Waterproof King Mattress Protector, confirm any applicable warranty or return terms on the specific listing; the available Amazon.com information doesn’t establish them.
Does the BEDSUM protector have certifications such as OEKO-TEX STANDARD 100?
The Amazon.com page text claims that the BEDSUM Waterproof King Mattress Protector has OEKO-TEX STANDARD certification and gives the certification number 2023OK1318. That is a claim made by the listing, not an independently verified certificate in the information available for this review.
If certification is important to your purchase, treat the number as a detail to confirm rather than proof that has been checked here. The available information doesn’t provide independent verification of the certificate or additional certification documentation. The BEDSUM Waterproof King Mattress Protector’s listing claim may be useful when comparing product pages, but it doesn’t settle questions about the certificate’s scope or status.
In short, the page names OEKO-TEX STANDARD and supplies a certificate number, while independent verification isn’t available in the supplied material. The BEDSUM Waterproof King Mattress Protector can therefore be described as listing that certification, not as having a certification confirmed by this review.

Does the BEDSUM protector’s waterproof layer affect breathability or make noise during sleep?
The BEDSUM Waterproof King Mattress Protector is described in the listing as breathable while its membrane blocks fluids. The Amazon.ca page also calls the pad breathable and claims its quilted top increases circulation to reduce heat and moisture. These are product claims, not firsthand findings about how the cover feels in use.
The listings also describe the protector as silent or noiseless. One says sleepers won’t hear loud plastic noise, while another claims it doesn’t crinkle or have a plastic feel; the current description says quilted construction helps soften rustling as you turn. The description also calls the fabric soft and breathable without changing the feel of the mattress.
The BEDSUM Waterproof King Mattress Protector’s quietness, breathability, and feel haven’t been independently assessed here. Sleepers may perceive these qualities differently, and the available information doesn’t establish how every sleeper will experience them.
Pros and Cons
Pros
- The current product details say the king cover measures x inches and fits mattresses up to inches thick.
- The listing describes a TPU membrane intended to block fluids such as sweat and urine.
- The cover is listed as machine washable, with cold delicate-cycle and low-heat or air-dry instructions.
Cons
- Listing details conflict on dimensions and mattress-depth fit, so you’ll need to confirm the exact version before ordering.
- The product description says larger or long-standing amounts of liquid may eventually seep through as vapor.
- The available Amazon.com information doesn’t state a warranty or return period.
- Material descriptions vary between the product description and the listed material and construction details.
Final Verdict
Key Takeaways
- Check the current size and depth details carefully: the newer listing says x inches and up to inches deep, while other listings give different figures.
- Treat the waterproof performance as a listing claim with a stated limit for larger or long-standing amounts of liquid.
- Use the specified cold, delicate wash and low-heat or air-dry care, and make sure the cover is completely dry before use.
- The listing claims OEKO-TEX STANDARD certification, but independent verification isn’t available in the supplied information.
- The current listing information doesn’t establish a warranty or return period for the Amazon.com offer.
Frequently Asked Questions
Is there a mattress protector that is pee-proof?
The BEDSUM listing says its TPU membrane blocks urine from reaching the mattress, but its product description limits protection to small amounts addressed promptly. Larger or long-standing amounts may eventually seep through as vapor, so the listing doesn’t establish a guarantee for every exposure.
Should a mattress protector be bigger than a mattress?
The available information doesn’t establish a general rule that a protector should be bigger than its mattress. For this cover, the current listing gives dimensions of x inches and says it fits mattresses up to inches thick; other listing details differ, so check the exact version.
What is the best mattress protector for a king size deep mattress?
The available information can’t identify a best protector. The current BEDSUM listing says this king cover fits mattresses up to inches thick, but earlier listings give different fit ranges, so confirm the exact version against your mattress depth before ordering.
Can we wash a waterproof mattress protector?
The BEDSUM listing says to machine wash the cover cold on a delicate cycle, then air dry or tumble dry low, and dry it completely before use. It also says not to use bleach, fabric softener, or dryer sheets, or to iron or dry clean it.

