Is twin mattress protector waterproof profitable to sell on Amazon United States?

The niche generates $6.2M/yr across 21 tracked products. 90-day search growth is +7.4%. Flapen's verdict: Launch it (61/100).

How competitive is the twin mattress protector waterproof niche?

14 brands and 21 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 74% of demand.

What do buyers complain about in twin mattress protector waterproof?

Top complaints mined from reviews: Water Resistance, Quality-Overall, Durability. The return rate is 1.8%.

When does demand for twin mattress protector waterproof peak?

Demand is steady year-round — the busiest month runs 1.2× the quietest.

What does it cost to enter the twin mattress protector waterproof niche?

Listings span $7.62–$33.38; the average listing price is $17.71 (sweet spot $15–$100). The average incumbent carries 50,228 reviews — the moat a new listing must climb.

twin mattress protector waterproof

Launch it

A $6.2M/yr market growing +7.4% this quarter with returns at 1.8% — clears our launch bar.

Market size

Incredible$6.2M

$6.2M/yr · 2.8M searches

Conversion

Incredible12.6%

search→purchase rate — share of searches ending in a sale

Avg price

Great$17.71

avg listing price — sweet spot $15–$100

Returns

Great1.8%

return rate — above 5% kills the launch gate

Price range

Good$7.62–$33.38

cheapest to priciest tracked listing — scored on the share inside $15–$100

Brand share

Good74%

top-5 brand share — brands hold most of the demand

Competition

Okay58%

top-5 click share — leaders hold, buyers still browse

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Okay+7.4%

90-day search growth — must beat 0% to launch

Review moat

Bad50,227.52

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, twin mattress protector waterproof is a $6.2M/yr Amazon United States market (2.8M searches/yr). The top 5 brands hold 74% of demand. Verdict: Launch it — 61/100.

Data updated Jul 29, 2026 · scored weekly · How we score niches

twin mattress protector waterproof market data

Units sold / yr: 400K–500K; avg 30,000–40,000/product
Revenue / yr: $7.1M–$8.9M; units × avg price
Conversion rate: 12.6%
Avg BSR: #22
Page quality: 0%
Prime: 100%
Sponsored: 95%
Out of stock: 0.0%
Avg brand age: 53 months
Avg seller age: 181 days

Competition & brand share

The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 rising

Sellers

Top-5 brand share

74%

Top 20: 100%

Top-5 click share

58%

Top 20: 99%

Open market

20%

Utopia Bedding36%
Moonsea12%
BEDLORE10%
Amazon Basics9%
UNILIBRA6%
SPRINGSPIRIT6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +7.4% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.2×

Open Trend

Top twin mattress protector waterproof search terms

twin mattress protector1.0M/yr +19.0%12.7% conv.
twin mattress protector waterproof319K/yr -20.0%14.2% conv.
twin mattress cover205K/yr +16.8%7.6% conv.
twin waterproof mattress protector183K/yr +9.5%14.6% conv.
waterproof mattress protector twin185K/yr -0.6%10.8% conv.
mattress protector twin136K/yr +21.8%11.2% conv.
twin size mattress protector123K/yr +1.8%10.6% conv.
waterproof twin mattress protector70K/yr +32.1%10.9% conv.
mattress cover twin84K/yr +5.9%7.0% conv.
twin mattress cover waterproof57K/yr +0.6%11.5% conv.

All search terms

Top twin mattress protector waterproof 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 21 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

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

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★4,111 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

Amazon Basics Waterproof Mattress Protector Fitted Silent Protection Twin White

Amazon Basics$9.894.5★1,147 rev

Utopia Bedding Mattress Protector Zippered Twin Size 100% Waterproof Bed Bug and Dust Mite Proof Mattress Encasement Absorbent 6 Sided Mattress Cover

Utopia Bedding$18.434.6★132,636 rev

Newest

by launch date

Amazon Basics Waterproof Mattress Protector Fitted Silent Protection Twin White

Amazon Basics$9.891,147 rev

1y ago

Utopia Bedding Waterproof Mattress Protector Twin Size (Gray) Premium 3D Air Soft Fabric Mattress Cover Fits 15 Inches Deep Breathable Fitted Style with Stretchable Pockets

Utopia Bedding$14.721,903 rev

1y ago

OhGeni 100% Waterproof Mattress Protector Twin Size Mattress Soft Pad Pet Hair & Bedwetting Resistant Cooling Breathable Fitted Sheets Washable Bed Cover Over 99 Count Hex Bumps

OhGeni$20.204,230 rev

2y ago

Utopia Bedding Waterproof Mattress Protector Twin Size Premium 3D Air Soft Fabric Mattress Cover Fits 15 Inches Deep Breathable Fitted Style with Stretchable Pockets

Utopia Bedding$12.401,903 rev

2y ago

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

3y ago

What buyers say about twin mattress protector waterproof

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall15%

“Excellent Fit”

Quality-Overall13%

“Good quality and easy to put on the mattress”

Value For Money9%

“Good value for money”

Water Resistance8%

“Definitely water resistant”

Advertised Vs Actual Product6%

“As advertised”

Soft Feel5%

“Soft and great absorbing”

Comfort-Overall4%

“Very comfortable”

Washability3%

“Wash very well”

Ease Of Use3%

“So much easier”

Ease Of Cleaning2%

“I can easily wipe it to clean real quick”

What buyers complain about

Water Resistance26%

“Isnt waterproof”

Quality-Overall9%

“Poor Quality Control”

Durability8%

“Breaks with one use”

Thickness6%

“It's not super thick”

Leak-Proof5%

“leaked right through”

Material Quality5%

“Poor material”

Size-Overall3%

“Small”

Value For Money3%

“Cheap in price”

Functionality-Overall3%

“Did not work”

Strength3%

“Flimsy”

Top return reasons

Size-Overall38%

Material Quality16%

Advertised Vs Actual Product7%

Quality-Overall5%

Thin5%

Value For Money5%

Water Resistance4%

Thickness2%

Cushion2%

Smell2%

Common questions

Is twin mattress protector waterproof profitable to sell on Amazon United States?: The niche generates $6.2M/yr across 21 tracked products. 90-day search growth is +7.4%. Flapen's verdict: Launch it (61/100).
How competitive is the twin mattress protector waterproof niche?: 14 brands and 21 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 74% of demand.
What do buyers complain about in twin mattress protector waterproof?: Top complaints mined from reviews: Water Resistance, Quality-Overall, Durability. The return rate is 1.8%.
When does demand for twin mattress protector waterproof peak?: Demand is steady year-round — the busiest month runs 1.2× the quietest.
What does it cost to enter the twin mattress protector waterproof niche?: Listings span $7.62–$33.38; the average listing price is $17.71 (sweet spot $15–$100). The average incumbent carries 50,228 reviews — the moat a new listing must climb.