Waterproof Mattress Protector King Size
MaybeBuyers convert on 14.3% of searches. But the average product has 22,651 reviews to catch up to, so Waterproof Mattress Protector King Size is a Maybe.
- Flapen Score
- 50 / 100Ranks 2,970 of 5,777 Home & Garden niches · −1 vs the category median of 5150
- Market size
- £267K/yr163K searches / yr
- 90-day growth
- -8.5%search demand this quarter
- Competition
- 57%top-5 click share · 14 brands · 22 sellers
Flapen Score
Waterproof Mattress Protector King Size against its category
The dotted line is the Home & Garden average. Past it, Waterproof Mattress Protector King Size is stronger. Inside it, weaker.
Market
The Waterproof Mattress Protector King Size market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Waterproof Mattress Protector King Size 163K times last year and spent an estimated £267K. The top 5 brands take 79% of clicks. Flapen scores it 50 out of 100, a Maybe.
01 · Demand
An estimated 14.3% of those searches ended in a purchase.
Shoppers searched for this 163K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 14.3% of those searches ended in a purchase. Searches in the last 90 days moved -8.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated £267K a year.
- Searches, last 12 months
- 163K
- Growth, 90 days vs prior 90
- -8.5%
- Conversion, latest week
- 14.3%
- Market size, estimated
- £267Ka year
- Peak month
- January1.3× the quietest month
- Top search term
- king size waterproof mattress protector38K searches a year
02 · Price
A sale here is worth £11.43.
Listings sell for £11.43 on average, from £6.70 to £22.61. Amazon reports units sold in ranges. This niche sold 25K to 30K a year. The average listing sells 1,250 to 1,500 of them. At £11.43 that is £14K to £17K a year per listing.
- Average price
- £11.43under the $15 to $100 sweet spot
- Price range
- £6.70–£22.61
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 25K–30K
- Units per listing a year
- 1,250–1,500
- Revenue per listing a year
- £14K–£17K
- Returns
- 0.8%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is ads and reviews.
91% of listings pay for placement with sponsored ads. 65% ship with Prime. On an average day, 1.9% of listings are out of stock. The average listing ranks #21 within Home Textiles. It carries 22,651 reviews at 4.53 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 91%
- Prime listings
- 65%
- Out of stock, average day
- 1.9%
- Average rank
- #21in Home Textiles
- Average rating
- 4.53 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 22,651per listing
- Listings tracked
- 23
04 · Newcomers
1 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 46 months on average, so the names here are settling in.
- Launched, last 12 months
- 1
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 46 months
Products
Top Waterproof Mattress Protector King Size products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 28, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Caroline Shatuik Waterproof Mattress Protector King |40cm Extra Deep Fitted King Size Waterproof Bed Protector Topper | Non Noisy & Breathable Mattress Cover King Size Bed(152 X 200 +40CM)
- Price
- £9.89
- Rating
- 4.5/5
- Reviews
- 11,349
- Age
- 4y ago
Silentnight Waterproof Mattress Protector King - Quiet Rustle Free Waterproof Resistant Sheet Moisture Proof Mattress Pad Cover - Machine Washable and Hypoallergenic - King
- Price
- £13.65
- Rating
- 4.5/5
- Reviews
- 3,713
- Age
- 5y ago
Acrali Home 100% Waterproof Mattress Protector King Size Bed Fitted Extra Deep 40cm Skirt Premium Terry Cotton Hypoallergenic King Size Mattress Protector 150x200cm - Washable Nonslip Cover Sheet
- Price
- £10.66
- Rating
- 4.5/5
- Reviews
- 1,725
- Age
- 2y ago
Waterproof Mattress Protector King Bed 150 x 200 cm Fits Up to 40 cm Deep Mattresses Premium Terry Mattress Protector by Utopia Bedding
- Price
- £7.51
- Rating
- 4.6/5
- Reviews
- 108,982
- Age
- 8y ago
Utopia Bedding Premium Waterproof Mattress Encasement King Bed (150 x 200 x 30 cm) Zippered Mattress Protector Bed Bug & Dust Mite Proof White (Pack of 1)
- Price
- £10.52
- Rating
- 4.5/5
- Reviews
- 12,841
- Age
- 7y ago
Trending
estimated 90-day click momentum
Utopia Bedding Waterproof Mattress Protector 180 x 200 cm for Mattresses up to 30 cm High Lightweight and Soft Jersey Mattress Cover with Stretchable Sides - White
- Price
- £8.04
- Rating
- 4.4/5
- Reviews
- 630
- Age
- 2y ago
ECOBIZ 100% Waterproof Mattress Protector King Size Bed 152x200 Extra Deep 30CM Fitted Skirt Soft Super Absorbent Non-noisy Cotton Terry Cover Breathable Hypoallergenic Washable Kingsize Sheet
- Price
- £10.71
- Rating
- 4.4/5
- Reviews
- 7,424
- Age
- 4y ago
4AS 100% Waterproof Mattress Protector Super Absorbent & Aloe Vera Treated Terry Towel with Deep 30cm Fitted Skirt for Extra Comfort King Size Mattress Protector (150x200+30 cm)
- Price
- £11.12
- Rating
- 4.6/5
- Reviews
- 95
- Age
- 2y ago
BEDLORE Waterproof King Size Mattress Protector Brushed Microfiber with Upgraded TPU Layer Deep Pocket Hypoallergenic Breathable Noiseless Oeko-tex Mattresses Cover (White)
- Price
- £21.33
- Rating
- 4.8/5
- Reviews
- 951
- Age
- 7mo ago
PlushDeluxe Premium Bamboo Mattress Protector Waterproof Hypoallergenic & Ultra Soft Breathable Bed Mattress Cover & Protection -Free PVC Phthalate (UK King Size) White
- Price
- £22.61
- Rating
- 4.5/5
- Reviews
- 35,364
- Age
- 2y ago
Newest
by launch dateBEDLORE Waterproof King Size Mattress Protector Brushed Microfiber with Upgraded TPU Layer Deep Pocket Hypoallergenic Breathable Noiseless Oeko-tex Mattresses Cover (White)
- Price
- £21.33
- Rating
- 4.8/5
- Reviews
- 951
- Age
- 7mo ago
HUAXITRA Waterproof Mattress Protector King Size Bed with 30CM Extra Deep Skirt Fitted Sheet Protects King Size Mattress Protector Anti Allergy Breathable Mattress Bed Sheet Covers (150x200cm)
- Price
- £16.48
- Rating
- 4.5/5
- Reviews
- 69
- Age
- 1y ago
Waterproof Mattress Protector King Size Quilted King Mattress Protectors Fits Mattresses up to 30cm Deep Breathable Super King Topper-White
- Price
- £10.80
- Rating
- 4.6/5
- Reviews
- 555
- Age
- 1y ago
4AS 100% Waterproof Mattress Protector Super Absorbent & Aloe Vera Treated Terry Towel with Deep 30cm Fitted Skirt for Extra Comfort King Size Mattress Protector (150x200+30 cm)
- Price
- £11.12
- Rating
- 4.6/5
- Reviews
- 95
- Age
- 2y ago
Acrali Home 100% Waterproof Mattress Protector King Size Bed Fitted Extra Deep 40cm Skirt Premium Terry Cotton Hypoallergenic King Size Mattress Protector 150x200cm - Washable Nonslip Cover Sheet
- Price
- £10.66
- Rating
- 4.5/5
- Reviews
- 1,725
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 57% of clicks. Leaders hold, but buyers still shop past them.
Brands
14 rising
Sellers
22
Est. top-5 brand share
79%
Top 20: 100%
Est. top-5 click share
57%
Top 20: 96%
Open market
17%
- Utopia Bedding25%
- CAROLINE SHATUIK25%
- Silentnight11%
- ACRALI HOME11%
- IMFAA8%
- Oliver Bedding4%
- Open — no brand owns it (8 brands, 17%)
Demand
Waterproof Mattress Protector King Size search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.3×
Search terms
Top Waterproof Mattress Protector King Size search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- king size waterproof mattress protector38K/yr
- waterproof mattress protector king size37K/yr
- king size mattress protector waterproof19K/yr
- waterproof mattress protector king14K/yr
- waterproof king size mattress protector8K/yr
- kingsize waterproof mattress protector fitted10K/yr
- water proof mattress protector king size bed fitted6K/yr
- king-size waterproof mattress protector5K/yr
- king waterproof mattress protector4K/yr
- king size waterproof sheet3K/yr
Reviews and returns
What reviews say buyers love and hate about Waterproof Mattress Protector King Size
We read the reviews and the return reasons for every product selling here.
“Not water proof”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
16 topics
Keep looking
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Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Waterproof Mattress Protector King Size questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data