waterproof sheet
Skip itA small market ($58K/yr) — this niche doesn't clear our bar today.
Avg price
Great$20.82avg listing price — sweet spot $15–$100
Returns
Great1.6%return rate — above 5% kills the launch gate
Brand share
Great59%top-5 brand share — no brand owns this niche
Price range
Great$7.55–$38.45cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good51%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+6.8%90-day search growth — must beat 0% to launch
Conversion
Okay2.2%search→purchase rate — share of searches ending in a sale
Review moat
Bad15,034.85avg incumbent reviews — the moat a new listing must climb
Market size
Bad$58K$58K/yr · 127K searches
According to Flapen's Amazon United States niche tracking, waterproof sheet is a $58K/yr Amazon United States market (127K searches/yr). The top 5 brands hold 59% of demand. Verdict: Skip it — 48/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
waterproof sheet market data
- Units sold / yr
- 3K–4K
- avg 100–250/product
- Revenue / yr
- $62K–$83K
- units × avg price
- Conversion rate
- 2.2%
- Avg BSR
- #30
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 51 months
- Avg seller age
- 174 days
Competition & brand share
The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.Brands
19 falling
Sellers
24
Top-5 brand share
59%
Top 20: 100%
Top-5 click share
51%
Top 20: 93%
Open market
34%
- ohano16%
- WenBags14%
- BEDLORE11%
- Utopia Bedding10%
- SPRINGSPIRIT9%
- Sufdari7%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +6.8% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top waterproof sheet search terms
- waterproof sheet70K/yr
- waterproof sheets52K/yr
- urine proof bed sheets3K/yr
- urine proof bedding3K/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
Waterproof Mattress Protector Queen Fitted Sheet Style Breathable Mattress Cover with Deep Pocket Fits Up to 18 Machine Washable Noiseless Bed Cover for Kids Adults Pets (Dark Gray 60 X 80)
ohano$19.774.5★1,632 rev
WenBags Waterproof Bed Sheet Flat Sheets Lightweight 70*90 Inches Queen Size Mattress Furniture Protector Cover for Bed Couch Pet Hair Resistant Cover Ideal for Dogs Cats Hotels and Hospitals (Gray)
WenBags$19.744.3★399 rev
BEDLORE Waterproof Mattress Protector Queen Size Mattress Pad Noiseless with Deep Pocket 6-18 Depth Soft Breathable Dirt-Proof Bed Mattress Cover Washable for Home Bedroom Hotel (Gray)
BEDLORE$25.004.6★23,362 rev
Queen Mattress Protector Waterproof Cover Absorbent Fitted Sheet up - 18 Deep Pocket Mattress Cover Queen Size Bed Sheets Terry Machine Wash Protection Mattress Protector
SPRINGSPIRIT$11.364.5★17,914 rev
Utopia Bedding Washable Underpads 34 x 36 (Pack of 4) Waterproof Reusable Heavy Absorbency Incontinence Bed Pads for Adults Kids Elderly and Pets Bedwetting Pads for Sofa and Couch (Blue)
Utopia Bedding$20.554.5★24,239 rev
Newest
by launch date
LOOBANI Waterproof Blanket for Bed Soft Flannel Twin Bed Blanket 60 x 80
LOOBANI$35.77649 rev
FYGRIP 4 Pack 36 x 36 Extra Heavy Absorbency Washable Underpads Waterproof Quick Drying Nursing Incontinence Reusable Washable Bed Pee Pads for Dogs Diaper Changing & Adults Green
FYGRIP$28.183,165 rev
Sufdari Waterproof Mattress Protector Queen Size Noiseless Mattress Cover with 18 Deep Pocket Bed Bug Proof and Waterproof Fitted Sheets Machine Washable Mattress Protectors Black
Sufdari$18.16391 rev
WenBags Lightweight Waterproof Flat Sheet 70 * 90 Inches Queen Size-Mattress Protector for Bed & Couch Pet Hair Resistant Cover Ideal for Dogs & Cats Perfect for Hotels & Hospitals (White)
WenBags$19.66399 rev
BEDLORE Waterproof Mattress Protector Queen Size Mattress Pad Noiseless with Deep Pocket 6-18 Depth Soft Breathable Dirt-Proof Bed Mattress Cover Washable for Home Bedroom Hotel (Gray)
BEDLORE$25.0023,362 rev
Trending
90-day click momentumLOOBANI Waterproof Blanket for Bed Soft Flannel Twin Bed Blanket 60 x 80
LOOBANI$35.774.6★
WenBags Lightweight Waterproof Flat Sheet 70 * 90 Inches Queen Size-Mattress Protector for Bed & Couch Pet Hair Resistant Cover Ideal for Dogs & Cats Perfect for Hotels & Hospitals (White)
WenBags$19.664.3★
SILLY LEGACY Thin Reversible Waterproof Protective Cover or Liner for Bed or Couch (Queen Size 96 x 82 inch) for Dogs and Cats Babies; Incontinence Dirt Drool
SILLY LEGACY$38.454.4★
FYGRIP 4 Pack 36 x 36 Extra Heavy Absorbency Washable Underpads Waterproof Quick Drying Nursing Incontinence Reusable Washable Bed Pee Pads for Dogs Diaper Changing & Adults Green
FYGRIP$28.184.6★
Ameritex Waterproof Dog Bed Cover Pet Blanket for Furniture Bed Couch Sofa Reversible
Ameritex$7.554.3★
What buyers say about waterproof sheet
What buyers praise and complain about, mined from review topics.What buyers love
“Amazing Quality”
“Easy to fit”
“Very affordable”
“Completely Waterproof”
“As advertised”
“Extremely comfortable”
“Extremely soft”
“Great absorbency”
“Easy to wash”
“Still working well”
What buyers complain about
“NOT WATER PROOF”
“Not leak proof”
“It doesn't fit well”
“Bad quality”
“it is not effective”
“Very thin material”
“Very deceiving”
“Takes a bit to dry”
“DOES NOT ABSORB”
“Falls Apart”
Top return reasons
Common questions
- Is waterproof sheet profitable to sell on Amazon United States?
- The niche generates $58K/yr across 27 tracked products. 90-day search growth is +6.8%. Flapen's verdict: Skip it (48/100).
- How competitive is the waterproof sheet niche?
- 19 brands and 24 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 59% of demand.
- What do buyers complain about in waterproof sheet?
- Top complaints mined from reviews: Water Resistance, Leak-Proof, Size-Overall. The return rate is 1.6%.
- When does demand for waterproof sheet peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the waterproof sheet niche?
- Listings span $7.55–$38.45; the average listing price is $20.82 (sweet spot $15–$100). The average incumbent carries 15,035 reviews — the moat a new listing must climb.