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California King Mattress Protector

Maybe

Products sell for $30.99 on average, inside the sweet spot. But the average product has 63,147 reviews to catch up to, so California King Mattress Protector is a Maybe.

Flapen Score
53
53 / 100
Top 30% of 11,240 Home & Kitchen niches · +4 vs the category median of 49
Market size
$1.4M/yr459K searches / yr
90-day growth
+3.1%search demand this quarter
Competition
66%top-5 click share · 8 brands · 16 sellers

Flapen Score

California King Mattress Protector against its category

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

53Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The California King Mattress Protector market on Amazon at a glance

Shoppers on Amazon United States searched for California King Mattress Protector 459K times last year and spent an estimated $1.4M. The top 5 brands take 91% of clicks. Flapen scores it 53 out of 100, a Maybe.

01 · Demand

An estimated 10.0% of those searches ended in a purchase.

Shoppers searched for this 459K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 10.0% of those searches ended in a purchase. Searches in the last 90 days moved +3.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated $1.4M a year.

Searches, last 12 months
459K
Growth, 90 days vs prior 90
+3.1%
Conversion, latest week
10.0%
Market size, estimated
$1.4Ma year
Peak month
January1.1× the quietest month
Top search term
california king mattress protector148K searches a year

02 · Price

A sale here is worth $30.99.

Listings sell for $30.99 on average, from $18.99 to $54.30. Amazon reports units sold in ranges. This niche sold 50K to 60K a year. The average listing sells 4,000 to 5,000 of them. At $30.99 that is $124K to $155K a year per listing.

Average price
$30.99inside the $15 to $100 sweet spot
Price range
$18.99–$54.30
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
50K–60K
Units per listing a year
4,000–5,000
Revenue per listing a year
$124K–$155K
Returns
1.7%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is ads and reviews.

94% 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 #13 within Mattress Protectors & Encasements. It carries 63,147 reviews at 4.59 stars, so a new listing needs social proof before a better product.

Sponsored listings
94%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#13in Mattress Protectors & Encasements
Average rating
4.59 starsAmazon United States average 4.42 stars
Average reviews
63,147per listing
Listings tracked
16

04 · Newcomers

Brands here are settling in.

The brands on the shelf have sold for 58 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
58 months

Products

Top California 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 66% of clicks. Leaders hold, but buyers still shop past them.

Brands

8 falling

Sellers

16

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

66%

Top 20: 100%

Open market

5%

  • Brand 141%
  • Brand 229%
  • Brand 38%
  • Brand 47%
  • Brand 57%
  • Brand 64%
  • Open — no brand owns it (2 brands, 5%)

Demand

California King Mattress Protector search demand

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

10K6KHoliday '24Prime Day '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.1×

Search terms

Top California King Mattress Protector search terms shoppers use

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

  • california king mattress protector148K/yr
  • cal king mattress protector86K/yr
  • california king mattress cover42K/yr
  • mattress protector california king28K/yr
  • cali king mattress protector19K/yr
  • cal king mattress cover18K/yr
  • california king waterproof mattress protector18K/yr
  • cal king waterproof mattress protector14K/yr
  • waterproof mattress protector california king10K/yr
  • mattress protector cal king8K/yr

Reviews and returns

What reviews say buyers love and hate about California King Mattress Protector

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

19%of positive reviews mention “Size-Overall”
24%of negative reviews mention “Water Resistance”
1.7%of orders come back
“NOT WATERPROOF”
A buyer, on “Water Resistance”24% 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.

18 topics

NegativePositive

FAQ

Common California King Mattress Protector questions

Answered from the same tracked data.