---
title: "Waterproof Sheet — $58K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/waterproof-sheet"
last_updated: "2026-08-10T08:00:38.549Z"
locale: en
meta:
description: "Niche score 48/100 · $58K/yr market · 127K searches/yr · $20.82 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $58K/yr market · 127K searches/yr · $20.82 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Waterproof Sheet — $58K/yr Amazon US Niche (2026) - Flapen"
---
# **waterproof sheet**
**Skip it**
A small market ($58K/yr) — this niche doesn't clear our bar today.
Market size 15Growth 34Conversion 27Competition 57Returns 83Price range 76Avg price 90Brand share 76Review moat 19Quality gap 40
**Avg price**
**Great****$20.82**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.6%**
return rate — above 5% kills the launch gate
**Brand share**
**Great****59%**
top-5 brand share — no brand owns this niche
**Price range**
**Great****$7.55–$38.45**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****51%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+6.8%**
90-day search growth — must beat 0% to launch
**Conversion**
**Okay****2.2%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Bad****15,034.85**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$58K**
$58K/yr · 127K searches
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
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 ~~](https://flapen.com/research/methodology)
## **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.
7K5KPrime Day '25Spike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/health-household/waterproof-sheet/trend)
## **Top waterproof sheet search terms**
- **waterproof sheet**70K/yr+8.6%2.1% conv. - **waterproof sheets**52K/yr+6.5%1.7% conv. - **urine proof bed sheets**3K/yr-15.5%1.2% conv. - **urine proof bedding**3K/yr-10.2%1.5% conv. [**All search terms **](https://flapen.com/research/us/health-household/waterproof-sheet/search-terms)
## **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.
0%4%$2K8%$5K12%$7K16%$9K1001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**$19.77**4.5★1,632 rev](https://www.amazon.com/dp/B0BYYTLXZW) [2**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**$19.74**4.3★399 rev](https://www.amazon.com/dp/B08RCT13DR) [3**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**$25.00**4.6★23,362 rev](https://www.amazon.com/dp/B0C1NNYJGB) [4**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**$11.36**4.5★17,914 rev](https://www.amazon.com/dp/B08BBZKSTS) [5**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**$20.55**4.5★24,239 rev](https://www.amazon.com/dp/B07Q1XCM3L)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**LOOBANI Waterproof Blanket for Bed Soft Flannel Twin Bed Blanket 60 x 80**LOOBANI**$35.77**649 rev1y ago](https://www.amazon.com/dp/B0DV3965B5) [**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**$28.18**3,165 rev1y ago](https://www.amazon.com/dp/B0DBM3QNDG) [**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**$18.16**391 rev1y ago](https://www.amazon.com/dp/B0DKX72JP1) [**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**$19.66**399 rev1y ago](https://www.amazon.com/dp/B0DFVK5PPG) [**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**$25.00**23,362 rev3y ago](https://www.amazon.com/dp/B0C1NNYJGB)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**LOOBANI Waterproof Blanket for Bed Soft Flannel Twin Bed Blanket 60 x 80**LOOBANI**$35.77**4.6★**▲ 209%**](https://www.amazon.com/dp/B0DV3965B5) [**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**$19.66**4.3★**▲ 186%**](https://www.amazon.com/dp/B0DFVK5PPG) [**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**$38.45**4.4★**▲ 180%**](https://www.amazon.com/dp/B07ZS44NKW) [**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**$28.18**4.6★**▲ 122%**](https://www.amazon.com/dp/B0DBM3QNDG) [**Ameritex Waterproof Dog Bed Cover Pet Blanket for Furniture Bed Couch Sofa Reversible**Ameritex**$7.55**4.3★**▲ 106%**](https://www.amazon.com/dp/B08R74XVCS)
**~~View all trending →~~**
## **What buyers say about waterproof sheet**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**15%
*“Amazing Quality”*
**Size-Overall**13%
*“Easy to fit”*
**Value For Money**8%
*“Very affordable”*
**Water Resistance**7%
*“Completely Waterproof”*
**Advertised Vs Actual Product**5%
*“As advertised”*
**Comfort-Overall**4%
*“Extremely comfortable”*
**Soft Feel**4%
*“Extremely soft”*
**Absorbency**3%
*“Great absorbency”*
**Ease Of Cleaning**3%
*“Easy to wash”*
**Durability**3%
*“Still working well”*
### **What buyers complain about **
**Water Resistance**25%
*“NOT WATER PROOF”*
**Leak-Proof**10%
*“Not leak proof”*
**Size-Overall**6%
*“It doesn't fit well”*
**Quality-Overall**4%
*“Bad quality”*
**Functionality-Overall**4%
*“it is not effective”*
**Thickness**4%
*“Very thin material”*
**Advertised Vs Actual Product**3%
*“Very deceiving”*
**Moist/Dry**3%
*“Takes a bit to dry”*
**Absorbency**3%
*“DOES NOT ABSORB”*
**Durability**2%
*“Falls Apart”*
### **Top return reasons **
**Size-Overall**42%
**Material Quality**10%
**Advertised Vs Actual Product**6%
**Color**5%
**Value For Money**4%
**Thin**4%
**Water Resistance**4%
**Quality-Overall**3%
**Thickness**2%
**Comfort-Overall**2%
## **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.
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