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King Mattress Protector

Maybe

Shoppers spend an estimated $11.8M a year here. But the average product has 65,161 reviews to catch up to, so King Mattress Protector is a Maybe.

Flapen Score
57
57 / 100
Top 16% of 11,240 Home & Kitchen niches · +8 vs the category median of 49
Market size
$11.8M/yr4.0M searches / yr
90-day growth
+3.0%search demand this quarter
Competition
62%top-5 click share · 12 brands · 19 sellers

Flapen Score

King Mattress Protector against its category

The dotted line is the Home & Kitchen average. Past it, King Mattress Protector is stronger. Inside it, weaker.

57Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The King Mattress Protector market on Amazon at a glance

Shoppers on Amazon United States searched for King Mattress Protector 4.0M times last year and spent an estimated $11.8M. The top 5 brands take 83% of clicks. Flapen scores it 57 out of 100, a Maybe.

01 · Demand

An estimated 10.9% of those searches ended in a purchase.

Shoppers searched for this 4.0M times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 10.9% of those searches ended in a purchase. Searches in the last 90 days moved +3.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated $11.8M a year.

Searches, last 12 months
4.0M
Growth, 90 days vs prior 90
+3.0%
Conversion, latest week
10.9%
Market size, estimated
$11.8Ma year
Peak month
July1.2× the quietest month
Top search term
king size mattress protector1.1M searches a year

02 · Price

A sale here is worth $26.96.

Listings sell for $26.96 on average, from $13.96 to $54.39. Amazon reports units sold in ranges. This niche sold 400K to 500K a year. The average listing sells 20,000 to 25,000 of them. At $26.96 that is $539K to $674K a year per listing.

Average price
$26.96inside the $15 to $100 sweet spot
Price range
$13.96–$54.39
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
400K–500K
Units per listing a year
20,000–25,000
Revenue per listing a year
$539K–$674K
Returns
2.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is ads and reviews.

100% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #17 within Mattress Protectors & Encasements. It carries 65,161 reviews at 4.57 stars, so a new listing needs social proof before a better product.

Sponsored listings
100%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#17in Mattress Protectors & Encasements
Average rating
4.57 starsAmazon United States average 4.42 stars
Average reviews
65,161per listing
Listings tracked
20

04 · Newcomers

Brands here are settling in.

The brands on the shelf have sold for 51 months on average, so the names here are settling in.

Launched, last 12 months
0
Successful launches
0Amazon's first-year sales bar
Average brand age
51 months

Products

Top King Mattress Protector products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Sign in to see the products

The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.

Competition

Competition: brands, sellers & click share

The top 5 products take 62% of clicks. Leaders hold, but buyers still shop past them.

Brands

12 rising

Sellers

19

Top-5 brand share

83%

Top 20: 100%

Top-5 click share

62%

Top 20: 100%

Open market

12%

  • Brand 127%
  • Brand 226%
  • Brand 319%
  • Brand 47%
  • Brand 55%
  • Brand 65%
  • Open — no brand owns it (6 brands, 12%)

Demand

King Mattress Protector search demand

Weekly searches over the year, seasonality beneath. Pick a range.

100K60KHoliday '24Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.2×

Search terms

Top King Mattress Protector search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • king size mattress protector1.1M/yr
  • king mattress protector901K/yr
  • mattress protector king599K/yr
  • waterproof mattress protector king190K/yr
  • king size mattress cover165K/yr
  • king mattress cover168K/yr
  • mattress cover king size bed163K/yr
  • king size waterproof mattress protector122K/yr
  • king waterproof mattress protector66K/yr
  • mattress protector king size bed70K/yr

Reviews and returns

What reviews say buyers love and hate about King Mattress Protector

We read the reviews and the return reasons for every product selling here.

17%of positive reviews mention “Size-Overall”
25%of negative reviews mention “Water Resistance”
2.0%of orders come back
“NOT WATER PROOF”
A buyer, on “Water Resistance”25% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

17 topics

NegativePositive

FAQ

Common King Mattress Protector questions

Answered from the same tracked data.