twin waterproof mattress pad
Worth a lookShows searches that convert (11.7% search→purchase), but a deep review moat (34,698 avg reviews) keeps it on the watch list.
Conversion
Great11.7%search→purchase rate — share of searches ending in a sale
Avg price
Great$19.47avg listing price — sweet spot $15–$100
Returns
Great1.7%return rate — above 5% kills the launch gate
Price range
Good$9.50–$29.71cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Good+24.2%90-day search growth — must beat 0% to launch
Brand share
Okay77%top-5 brand share — brands hold most of the demand
Market size
Okay$192K$192K/yr · 85K searches
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay69%top-5 click share — leaders hold, buyers still browse
Review moat
Bad34,698.13avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, twin waterproof mattress pad is a $192K/yr Amazon United States market (85K searches/yr). The top 5 brands hold 77% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
twin waterproof mattress pad market data
- Units sold / yr
- 10K–13K
- avg 500–750/product
- Revenue / yr
- $195K–$243K
- units × avg price
- Conversion rate
- 11.7%
- Avg BSR
- #17
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 51 months
- Avg seller age
- 185 days
Competition & brand share
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.Brands
11 flat
Sellers
16
Top-5 brand share
77%
Top 20: 100%
Top-5 click share
69%
Top 20: 100%
Open market
16%
- SPRINGSPIRIT32%
- GRT18%
- Utopia Bedding11%
- Amazon Basics9%
- BEDLORE7%
- UNILIBRA7%
- Open — no brand owns it (5 brands, 16%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +24.2% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top twin waterproof mattress pad search terms
- twin mattress pad waterproof23K/yr
- twin waterproof mattress pad24K/yr
- waterproof mattress pad twin20K/yr
- waterproof twin mattress pad8K/yr
- twin mattress topper waterproof7K/yr
- twin mattress pad waterproof washable2K/yr
Top twin waterproof mattress pad 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 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Mattress Protector Waterproof Twin Size for Kid Soft & Cooling Twin Mattress Pad Cover Quilted for Single Bed Fitted with Deep Pocket up to 14 Depth
SPRINGSPIRIT$15.614.6★18,038 rev

GRT Twin Waterproof Mattress Pad Hollow Cotton Quilted Mattress Protector
GRT$23.584.6★14,378 rev

Twin Size Mattress Protector Waterproof Premium 200 GSM Terry Mattress Cover Soft & Breathable Bed Cover Fitted Sheet Style Stretchable Deep Pockets 15 by Utopia Bedding (White)
Utopia Bedding$11.964.5★104,639 rev

Amazon Basics Waterproof Mattress Protector Fitted Silent Protection Twin White
Amazon Basics$9.894.5★1,147 rev

BEDLORE Waterproof Mattress Protector Twin Size Mattress Pad with Deep Pocket 6-15 Depth Soft Breathable Dirt-Proof Single Bed Mattress Cover for Bedroom Dorm Room (Gray)
BEDLORE$19.214.6★23,362 rev
Newest
by launch date
Amazon Basics Waterproof Mattress Protector Fitted Silent Protection Twin White
Amazon Basics$9.891,147 rev

Utopia Bedding Waterproof Mattress Protector Twin Mattress Pad Quilted Fitted Cover Stretches up to 16 Inches Deep (White)
Utopia Bedding$16.625,146 rev

BEDLORE Waterproof Mattress Protector Twin Size Mattress Pad with Deep Pocket 6-15 Depth Soft Breathable Dirt-Proof Single Bed Mattress Cover for Bedroom Dorm Room (Gray)
BEDLORE$19.2123,362 rev

ELVEN HOME Twin Size Mattress Pad Waterproof Pillow Top Cooling Twin Mattress Topper for Single Bed Pee Proof Mattress Protector Cover Quilted Fitted with 8-21 Deep Pocket (39x75 inch Grey)
Elven Home$27.301,767 rev

SERTA Power Clean Triple Action Quilted Soft Waterproof Mattress Pad Protector Moisture Wicking Protection with 15 Deep Pocket Twin White
Serta$17.542,492 rev
Trending
90-day click momentum
SERTA Power Clean Triple Action Quilted Soft Waterproof Mattress Pad Protector Moisture Wicking Protection with 15 Deep Pocket Twin White
Serta$17.544.6★

Amazon Basics Waterproof Mattress Protector Fitted Silent Protection Twin White
Amazon Basics$9.894.5★

ELVEN HOME Twin Size Mattress Pad Waterproof Pillow Top Cooling Twin Mattress Topper for Single Bed Pee Proof Mattress Protector Cover Quilted Fitted with 8-21 Deep Pocket (39x75 inch Grey)
Elven Home$27.304.5★

Waterproof Mattress Protector Twin Size Skin Friendly and Breathable Twin Mattress Cover for Kids Viscose Jersey Mattress Pad with 14 Deep Pocket
Moonsea$9.504.5★

GRT 2 Pack Twin Mattress Protector Waterproof Breathable & Noiseless Waterproof Mattress Protector Fitted Deep Pocket from 5 to 19 Smooth Twin Mattress Cover Machine Washable
GRT$22.774.5★
What buyers say about twin waterproof mattress pad
What buyers praise and complain about, mined from review topics.What buyers love
“Fit perfect”
“Good quality and easy to put on the mattress”
“Good value for the money”
“Definitely water resistant”
“As advertised”
“Soft and great absorbing”
“they have held up great after many washings”
“Very comfortable”
“So much easier”
“Easy to clean”
What buyers complain about
“NOT WATER PROOF”
“leaked right through”
“Poor Quality Control”
“Material is thin”
“Did not work”
“False advertising”
“Cheap material”
“I could smell the urine on it”
“stained the bed”
“Everything was dry”
Top return reasons
Common questions
- Is twin waterproof mattress pad profitable to sell on Amazon United States?
- The niche generates $192K/yr across 15 tracked products. 90-day search growth is +24.2%. Flapen's verdict: Worth a look (51/100).
- How competitive is the twin waterproof mattress pad niche?
- 11 brands and 16 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 77% of demand.
- What do buyers complain about in twin waterproof mattress pad?
- Top complaints mined from reviews: Water Resistance, Leak-Proof, Quality-Overall. The return rate is 1.7%.
- When does demand for twin waterproof mattress pad peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the twin waterproof mattress pad niche?
- Listings span $9.50–$29.71; the average listing price is $19.47 (sweet spot $15–$100). The average incumbent carries 34,698 reviews — the moat a new listing must climb.