Is waterproof mattress topper profitable to sell on Amazon United States?

The niche generates $51K/yr across 32 tracked products. 5 of 5 products launched in the last 360 days are still selling. 90-day search growth is +6.9%. Flapen's verdict: Skip it (49/100).

How competitive is the waterproof mattress topper niche?

23 brands and 29 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 60% of demand.

What do buyers complain about in waterproof mattress topper?

Top complaints mined from reviews: Thickness, Water Resistance, Advertised Vs Actual Product. The return rate is 1.8%.

When does demand for waterproof mattress topper peak?

Demand is steady year-round — the busiest month runs 1.7× the quietest.

What does it cost to enter the waterproof mattress topper niche?

Listings span $11.36–$147.14; the average listing price is $41.59 (sweet spot $15–$100). The average incumbent carries 27,927 reviews — the moat a new listing must climb.

waterproof mattress topper

Skip it

A deep review moat (27,927 avg reviews) — this niche doesn't clear our bar today.

Avg price

Incredible$41.59

avg listing price — sweet spot $15–$100

Returns

Great1.8%

return rate — above 5% kills the launch gate

Brand share

Great60%

top-5 brand share — no brand owns this niche

Price range

Good$11.36–$147.14

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

Competition

Good49%

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

Conversion

Good4.5%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Okay+6.9%

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

Market size

Bad$51K

$51K/yr · 27K searches

Review moat

Bad27,926.75

avg incumbent reviews — the moat a new listing must climb

Signals No Dominant Brand

According to Flapen's Amazon United States niche tracking, waterproof mattress topper is a $51K/yr Amazon United States market (27K searches/yr). The top 5 brands hold 60% of demand. Verdict: Skip it — 49/100.

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

waterproof mattress topper market data

Units sold / yr: 1K–2K; avg 0–100/product
Revenue / yr: $52K–$62K; units × avg price
Conversion rate: 4.5%
Avg BSR: #86
Page quality: 0%
Prime: 94%
Sponsored: 91%
Out of stock: 9.5%
Avg brand age: 46 months
Avg seller age: 160 days

Competition & brand share

The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.

Brands

23 falling

Sellers

Top-5 brand share

60%

Top 20: 99%

Top-5 click share

49%

Top 20: 89%

Open market

34%

BEDLORE19%
Primesoft15%
QUIETSEA11%
WhatsBedding9%
Utopia Bedding6%
MASVIS6%

Demand & seasonality

Weekly Amazon search volume, last 82 weeks — +6.9% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.7×

Open Trend

Top waterproof mattress topper search terms

queen mattress topper waterproof11K/yr +7.4%5.0% conv.
stearns and foster mattress pad8K/yr +19.7%0.6% conv.
mattress topper waterproof queen4K/yr -3.0%5.8% conv.
mattress topper queen waterproof4K/yr -6.3%5.8% conv.

All search terms

Top waterproof mattress topper 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

PRIMESOFT Queen Size Thick Pillow Top Mattress Topper Up to 21 Inch Deep Pocket Soft Breathable for Back Pain Waterproof Protector Cover (White)

Primesoft$46.854.4★1,545 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

Waterproof Mattress Pad Queen Quilted Fitted Queen Mattress Topper Five-Layers Noiseless Mattress Protector Cover with 8-21 Deep Pocket Machine Washable Grey 60x80

QUIETSEA$34.204.6★376 rev

WhatsBedding Mattress Topper Queen Size Top -1

WhatsBedding$30.664.6★3,658 rev

Waterproof Queen Size Mattress Topper Viscose Derived from Bamboo Extra Thick Mattress Pad for Back Pain Cooling Mattress Protector with Deep Pocket 8-21 Green Queen

MASVIS$32.674.5★2,099 rev

Newest

by launch date

WhatsBedding Waterproof Mattress Topper Queen Size Cotton Top Down Alternative Filling Pillowtop Mattress Topper Cover-Fitted Quilted

WhatsBedding$35.1382 rev

1mo ago

BEDLORE Waterproof Queen Mattress Pad Breathable Mattress Protector with 6-18 Inch Deep Pocket Quilted Fitted Mattress Topper Bed Cover Noiseless & Machine Washable

BEDLORE$35.52103 rev

2mo ago

Ubauba 100% Waterproof Queen Size Mattress Topper Viscose Made from Bamboo Pillow Top Mattress Protectorfor Back Pain Relief Breathable Cooling Mattress Pad for Hot Sleeper 8-21 Inch Deep Pocket

Ubauba$32.79184 rev

2mo ago

Waterproof Queen Size Mattress Topper Viscose Derived from Bamboo Extra Thick Mattress Pad for Back Pain Cooling Mattress Protector with Deep Pocket 8-21 Green Queen

MASVIS$32.672,099 rev

3mo ago

Waterproof Mattress Pad Queen Quilted Fitted Queen Mattress Topper Five-Layers Noiseless Mattress Protector Cover with 8-21 Deep Pocket Machine Washable Grey 60x80

QUIETSEA$34.20376 rev

12mo ago

What buyers say about waterproof mattress topper

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

What buyers love

Comfort-Overall24%

“Comfortable and warm”

Soft Feel14%

“Soft fabric”

Size-Overall10%

“Fits like a glove”

Quality-Overall10%

“This is a great quality mattress cover”

Value For Money7%

“Great Deal”

Foam6%

“Improved cushion on mattress”

Advertised Vs Actual Product3%

“Better than I expected”

Cushion3%

“Extra cushion”

Sleep Quality2%

“Improves sleep”

Thickness2%

“This mattress pad is super thick and nice”

What buyers complain about

Thickness17%

“Not Thick Enough”

Water Resistance7%

“Not water resistant”

Advertised Vs Actual Product6%

“False advertisement”

Size-Overall5%

“Too big”

Comfort-Overall5%

“It's uncomfortable”

Quality-Overall5%

“Average quality”

Cushion4%

“No padding”

Value For Money3%

“Price is way to much for something that isn't as it says”

Fluffiness3%

“Not Fluffy”

Hard Feel2%

“Not soft”

Top return reasons

Size-Overall24%

Advertised Vs Actual Product10%

Thickness8%

Material Quality7%

Comfort-Overall7%

Cushion6%

Thin6%

Value For Money4%

Quality-Overall3%

Soft Feel3%

Common questions

Is waterproof mattress topper profitable to sell on Amazon United States?: The niche generates $51K/yr across 32 tracked products. 5 of 5 products launched in the last 360 days are still selling. 90-day search growth is +6.9%. Flapen's verdict: Skip it (49/100).
How competitive is the waterproof mattress topper niche?: 23 brands and 29 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 60% of demand.
What do buyers complain about in waterproof mattress topper?: Top complaints mined from reviews: Thickness, Water Resistance, Advertised Vs Actual Product. The return rate is 1.8%.
When does demand for waterproof mattress topper peak?: Demand is steady year-round — the busiest month runs 1.7× the quietest.
What does it cost to enter the waterproof mattress topper niche?: Listings span $11.36–$147.14; the average listing price is $41.59 (sweet spot $15–$100). The average incumbent carries 27,927 reviews — the moat a new listing must climb.