waterproof sheet
Worth a lookShows low returns (0.7%), but soft demand (-4.2% this quarter) keeps it on the watch list.
Returns
Incredible0.7%return rate — above 5% kills the launch gate
Brand share
Great56%top-5 brand share — no brand owns this niche
Competition
Good43%top-5 click share — leaders hold, buyers still browse
Conversion
Good4.4%search→purchase rate — share of searches ending in a sale
Avg price
Good£12.33avg listing price — sweet spot $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Price range
Okay£3.69–£20.10cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Okay£122K£122K/yr · 223K searches
Review moat
Bad6,139.7avg incumbent reviews — the moat a new listing must climb
Growth
Bad-4.2%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, waterproof sheet is a £122K/yr Amazon United Kingdom market (223K searches/yr). The top 5 brands hold 56% of demand. Demand peaks in Sep. Verdict: Worth a look — 50/100.
Data updated Jul 18, 2026 · scored weekly · How we score niches
waterproof sheet market data
- Units sold / yr
- 10K–13K
- avg 250–500/product
- Revenue / yr
- £123K–£154K
- units × avg price
- Conversion rate
- 4.4%
- Avg BSR
- #16
- Page quality
- 0%
- Prime
- 88%
- Sponsored
- 95%
- Out of stock
- 0.8%
- Avg brand age
- 42 months
- Avg seller age
- 182 days
Competition & brand share
The top 5 products take 43% of clicks — established leaders, but buyers still shop beyond them.Brands
27 rising
Sellers
39
Top-5 brand share
56%
Top 20: 93%
Top-5 click share
43%
Top 20: 82%
Open market
39%
- CAROLINE SHATUIK20%
- Hygge Supplies14%
- Silentnight9%
- Aydmed8%
- GuardedSleep5%
- IMFAA5%
Demand & seasonality
Weekly Amazon search volume, last 92 weeks — -4.2% search growth over the last 90 days.Peak months: Sep · busiest ÷ quietest = 1.6×
Top waterproof sheet search terms
- waterproof bed sheet45K/yr
- waterproof sheet46K/yr
- waterproof sheets for bed wetting24K/yr
- waterproof bed protector21K/yr
- bed protector waterproof8K/yr
- waterproof sheets11K/yr
- bed wetting mattress protector9K/yr
- incontinence mattress protector7K/yr
- waterproof bedding6K/yr
- water proof bed protectors5K/yr
Top waterproof sheet products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Caroline Shatuik Waterproof Mattress Protector Single 30cm Extra Deep Stretch Skirt Non-Noisy Terry Top Single Mattress Cover Single Bed(90 x 190cm)
CAROLINE SHATUIK£6.854.5★11,289 rev
Silentnight Waterproof Mattress Protector Single - Quiet Rustle Free Waterproof Resistant Sheet Moisture Proof Mattress Pad Cover - Machine Washable and Hypoallergenic - Single
Silentnight£9.144.5★7,987 rev
2 x AYDMED Essential Washable Incontinence Bed Pads | For Single Beds | Maximum Absorbency 100% Leakproof Kylie Sheets | Reusable Waterproof Bed Wetting Sheets For Adults Children & Babies
Aydmed£10.394.8★98 rev
Caroline Shatuik 100% Waterproof Mattress Protector Double-30cm Extra Deep Stretch Skirt Non-Noisy Terry Top Fitted Mattress Protector Double Bed Cover(137x190cm)
CAROLINE SHATUIK£9.064.5★11,289 rev
Hygge Sheets Bamboo Organic Incontinence Bed Sheets for Adults & Kids | Single Beds | 100% Waterproof Bed Wetting Sheets | Bed Protectors for Incontinence | Reusable and Washable Bed Pad | UK Brand
Hygge Supplies£20.004.6★1,222 rev
Newest
by launch date
WhyWorry Washable Incontinence Bed Sheets for Adults & Kids | 86 x 91 cm | for Single Bed | Waterproof Bed Wetting Mats | Reusable Bed Protectors | Pee Pads | Green | Pack of 2
WHYWORRY£13.13165 rev
2 x PULP Essential Washable Incontinence Bed Pads | For Single Beds | Maximum Absorbency 100% Leakproof Kylie Sheets | Reusable Waterproof Bed Wetting Sheets For Adults Children & Babies
Pulp£10.0934 rev
2 x AYDMED Essential Washable Incontinence Bed Pads | For Single Beds | Maximum Absorbency 100% Leakproof Kylie Sheets | Reusable Waterproof Bed Wetting Sheets For Adults Children & Babies
Aydmed£10.3998 rev
PVC Sheet Pad Waterproof Stain and Mess Oil-Proof Push Massage Spa Bed Sheet Thickened Protective Cover Bedspread Adult Couple for Upholstery Dressmaking Accessories (Black 130 * 220cm)
Enjiror£8.3744 rev
Aspire Homeware Single Mattress Protector (2 Pack) 100% Waterproof Terry Towel Mattress Cover Dust & Mite Protection Water Proof Sheet
Aspire Homeware£10.84310 rev
Trending
90-day click momentum2 x PULP Essential Washable Incontinence Bed Pads | For Single Beds | Maximum Absorbency 100% Leakproof Kylie Sheets | Reusable Waterproof Bed Wetting Sheets For Adults Children & Babies
Pulp£10.094.8★
Lynmark Waterproof Bed Protector with Tuck-In Flaps - Washable Bedwetting & Incontinence Sheets Absorb Up to 2L - Leak-Proof OEKO-Tex Certified Cotton Mattress Pad for Single Bed - 90x85cm White
Lynmark£12.974.6★
2 x AYDMED Essential Washable Incontinence Bed Pads | For Single Beds | Maximum Absorbency 100% Leakproof Kylie Sheets | Reusable Waterproof Bed Wetting Sheets For Adults Children & Babies
Aydmed£10.394.8★
ANSIO Tarpaulin 3m x 4m Water-resistant Tarp Large Camping Cover Sheet Multipurpose Groundsheet with UV Protection Weatherproof & Frost-Resistant Reinforced Eyelets - Blue
ANSIO£6.954.5★
2PCS Reusable Underpads 86.4x 91.4cm Cooling Waterproof Bed Pads Washable for Incontinence Adults
peepeego£9.344.6★
What buyers say about waterproof sheet
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent quality and perfectly comfortable to put onto the bed”
“Fits good”
“reasonably priced”
“As described”
“completely waterproof”
“What I appreciate most is that its fully washable”
“comfortable too”
“They absorb well”
“soft to the touch”
“Easy to use”
What buyers complain about
“Isnt waterproof”
“a little larger than most”
“they are thick”
“Not great quality”
“Leak through”
“Sadly dont do its job”
“Perhaps not worth the spend”
“The protector itself is also quite noisy”
“Misleading”
“So uncomfortable”
Top return reasons
Common questions
- Is waterproof sheet profitable to sell on Amazon United Kingdom?
- The niche generates £122K/yr across 40 tracked products. 4 of 5 products launched in the last 360 days are still selling. 90-day search growth is -4.2%. Flapen's verdict: Worth a look (50/100).
- How competitive is the waterproof sheet niche?
- 27 brands and 39 sellers compete. The top 5 products take 43% of clicks and top 5 brands hold 56% of demand.
- What do buyers complain about in waterproof sheet?
- Top complaints mined from reviews: Water Resistance, Size-Overall, Thickness. The return rate is 0.7%.
- When does demand for waterproof sheet peak?
- Demand peaks in Sep; the busiest month runs 1.6× the quietest.
- What does it cost to enter the waterproof sheet niche?
- Listings span £3.69–£20.10; the average listing price is £12.33 (sweet spot $15–$100). The average incumbent carries 6,140 reviews — the moat a new listing must climb.