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SafeRest Waterproof Mattress Protector King Size – Absorbent Breathable Soft Fitted Bed Cover with 18" Deep Stretchable Pockets – Machine Washable King Mattress Cover

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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Jul 5
Order within 15 hours and 38 minutes
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Size: King


Set name: Polyester Blend


Features

  • Keep your bed flawless with this waterproof mattress protector King size bed, built to block spills, urine, sweat, and stainsideal for protecting luxury mattresses without changing their comfort or breathability.
  • Available in Twin, Twin XL, Full, Full XL, Queen, King, California King, and Crib sizes, this waterproof mattress protector fits beds up to 18" deep for full coverage across any mattress style or depth.
  • This King mattress protector waterproof cover stays noiseless, and breathablecrafted for those who want five-star sleep while shielding their bed with a soft, water proof mattress protector King size.
  • Fitted-sheet design keeps your mattress cover King size bed smooth and tight all nightunlike plastic mattress protectors that shift or crinkle, this bed protector waterproof layer stays elegant and silent.
  • Machine washable and long-lasting, this King waterproof mattress protector and full waterproof mattress protector option keeps your mattress freshideal for modern homes, guest suites, and everyday use.

Brand: SafeRest


Color: White


Size: King


Fabric Type: Polyester Blend


Special Feature: Breathable, Deep Pocket, Water Proof


Brand Name: SafeRest


Age Range Description: Adult


Model Name: Mattress Protector


Number of Items: 1


Manufacturer: SafeRest


UPC: 850037652556


Manufacturer Part Number: SRT-HOK-MSPLY-KNG


Model Number: SRT-HOK-MSPLY-KNG


Other Special Features of the Product: Breathable, Deep Pocket, Water Proof


Closure Type: Pull On


Water Resistance Level: Waterproof


Fabric Type: Polyester Blend


Product Care Instructions: Machine Wash


Material Type: Classic (Polyester)


Size: King


Color: White


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jul 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Work PERFECTLY for Potty Training and w/ Bunk Bed Mattresses too!
These mattress protectors are simply wonderful. I bought these for our first "big boy" twin bed, a bunk bed. My son was still in diapers, then pull-ups, and now in his big boy underwear for the past few months. I recently purchased an extra one of these because we were having nightly accidents and a set of bedding was always in the wash, lol. First, the protector is snowy white and the top layer is super soft and has a fuzzy type feel - almost like super short minky. The underside is a very subtle waterproof layer. The fabric is very soft and does not have a plastic feel to it at all. The entire cover is the same material, including the sides. Some mattress pads use a cheaper stretchy material on the sides that go over the mattress - this one doesn't - it is just like a fitted sheet. We have memory foam mattresses that are a tiny bit less thick than an normal mattress and fit our bunk bed well. This product is made to fit a thicker (normal) mattress, but the corners and edges are so well made that it still works on our mattresses without coming loose. I think maybe the waterproof layer helps hold it in place and then I just extra tuck the edges. The SafeRest protects the mattress perfectly - no liquid has ever leaked through. When my son was still in diapers, leaks were less obvious by looking at the colorful sheets (and they dry so fast) that I often pulled up the sheet and looked at the white mattress cover for tell-tale yellow patches - I found that to be so helpful - it's the little things that help out, lol. They have maintained their original quality, color, softness, elasticity, etc. through all of the washing and drying over and over again. And I wash soiled bedding on super wash, warm with extra rinse and throw them in the dryer on high - you don't have time for extra care when you need new bedding every day! These are the same snowy white as when they arrived (with no stains) even after being washed with all of our colorful sheets and bedspreads - Winnie the Pooh, Robots, and Lego. And they feel just as soft with no pilling on the soft side, no cracks in the waterproof side and the elastic has maintained it's like-new integrity. I wish my adult bedding was made this well. ... show more
Reviewed in the United States on August 22, 2015 by SometimesMaven

  • Good quality
Size: Full Set name: Polyester Blend
My old mattress cover disintegrated and it was time for a new one. This one is great. It was easy to wash, put on the bed, it stays put between linen changes, and has no odor to it. It’s definitely more durable than the ones I had used before!
Reviewed in the United States on December 9, 2025 by Tricia C.

  • I like!!
Size: Queen Set name: Polyester Blend
Nice quality protective covers. Blend right in under the sheets. Protects the mattress as it should. Good purchase.
Reviewed in the United States on April 11, 2026 by Amber Jones

  • It doesn't let liquid through.
Size: King Set name: Polyester Blend
I like it. It is a little slippery to put on. Probably after I was it we will see. Fits my king size bed perfect. I have a 15 in mattress.
Reviewed in the United States on September 15, 2025 by Brown Eyes

  • Very waterproof!
Size: Twin Set name: Polyester Blend
When I was washing it before I put it on the twin mattress for my toddler, I pulled it out of the washer and excess water rolled right off! That puts my mind at ease! Fits an 8 inch twin mattress well! It seemed pretty cool and comfortable so I guess You could use it as a fitted sheet if you wanted to. There was no zipper on the sheet I received. It was just like a regular fitted sheet with pockets. ... show more
Reviewed in the United States on September 1, 2025 by Teresa Van Norman

  • Great Mattress Protection
Size: Full Set name: Polyester Blend
Great protection! It is soft and completely noiseless. Very good quality and easy to care for.
Reviewed in the United States on December 30, 2025 by Metal Mom

  • So glad I got this
Size: King Set name: Polyester Blend
Works like a charm. My baby had diarrhea on my bed, but thank goodness I had this protector on is. When I removed all the sheets, there was no mark or wetness on my mattress.
Reviewed in the United States on April 4, 2026 by SofiaKhan

  • Bought one to test out, and have now purchased two more!
I read hundred of reviews all over online trying to find a good mattress cover. The purpose for our use of this *Twin Size SafeRest Classic Plus Hypoallergenic 100% Waterproof Mattress Protector - Vinyl Free* was for my 4 yr old's bed. He's a very sound sleeper, and not yet potty trained for nights... And it's been great! We recently got the kids new beds, so when the old mattress was replaced I was determined to find a REALLY GOOD waterproof cover to protect the new one! For those saying this wasn't water proof.. I don't know how that's possible. Maybe they got a "lemon" product? But even after multiple accidents (and my son can pee a lot!) the new mattress below is dry. Originally skeptical because of some mixed reviews, I put one of the polyester crib mattress pads under him to help absorb and "protect just incase" But even without it, there isn't fluid soaking through. DETAILS on the product itself. The sides are not waterproof. It is just a stretchy fabric that fits well around the mattress, and isn't a battle to get on. (a bonus when you have bunk beds you're crawling under/on to make) There is the same soft fabric on the cover itself, that is almost "lined" with the plastic waterproof fabric under it. But it's not crunchy like a lot of plastic liners. I can't say temperature wise how much it effects sleeping on, but we're in AZ so it's always hot. I have washed it multiple times. Personally I wash it in a large net bag to avoid it catching or snagging on anything. Gently in warm water (machine) and hung to dry. In a pinch I put in on low in the dryer to speed up the drying before bedtime, but generally I let it completely air dry. One reason I'm buying an extra spare one. I have previously tried some of the "cheaper" plastic covers, the kind that zip and fully enclose even, and they just rip. And then leak! This one having soft fabric in addition to the waterproof side stands up to little boys bouncing on their bed... And it's not really loud and crunchy when you move or sit on it! (also nice. The last one we had would make horrible noise every time my son moved) I would really recommend this cover, if you're wanting a reasonably priced product that works! *I haven't dumped liquid straight on to test as some people do with these.. And I also don't have pets of any kind climbing on or sleeping on them.. I also wouldn't suggest this as a solution for bedbugs (as pictured on the product photo) simply because it's not a fully incasing cover. ... show more
Reviewed in the United States on May 6, 2014 by R.Cos

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