King Mattress Protector
MaybeShoppers 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 / 100Top 16% of 11,240 Home & Kitchen niches · +8 vs the category median of 4957
- 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.
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
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 29, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
BEDLORE Waterproof Mattress Protector King Size Mattress Pad with Deep Pocket 6-18 Depth Soft Noiseless Dirt-Proof Bed Mattress Cover Washable for Home Bedroom Hotel (Gray)
- Price
- $27.46
- Rating
- 4.6/5
- Reviews
- 23,362
- Age
- 3y ago

PlushDeluxe Bamboo Waterproof Mattress Protector King Size Ultra Soft
- Price
- $39.07
- Rating
- 4.6/5
- Reviews
- 42,286
- Age
- 9y ago

Waterproof King Mattress Protector Premium Terry Mattress Cover Breathable Fitted Bed Cover with Stretchable Deep Pocket up to 17 by Utopia Bedding (White)
- Price
- $19.60
- Rating
- 4.5/5
- Reviews
- 104,639
- Age
- 9y ago

Quilted Fitted Mattress Pad King Mattress Protector Topper with Deep Pocket Stretches up to 16 Inches Machine Washable Mattress Cover by Utopia Bedding (White)
- Price
- $20.97
- Rating
- 4.6/5
- Reviews
- 158,993
- Age
- 9y ago

SafeRest Waterproof King Size Mattress Protector - Fitted with Stretchable Pockets - Machine Washable Cotton Blend Mattress Cover for Bed
- Price
- $37.77
- Rating
- 4.6/5
- Reviews
- 280,383
- Age
- 16y ago
Trending
estimated 90-day click momentum
SafeRest Sleepure Waterproof Mattress Protector King Size - Viscose Derived from Bamboo - Fitted with Stretchable Pockets - Machine Washable Cotton King Mattress Cover for Bed
- Price
- $39.57
- Rating
- 4.6/5
- Reviews
- 280,383
- Age
- 2y ago

100% Waterproof King Mattress Protector - 360 Protection Against Spills Stains & Accidents for Parents & Pet Owners - Noiseless & Cooling Viscose Made from Bamboo (White)
- Price
- $32.11
- Rating
- 4.6/5
- Reviews
- 1,143
- Age
- 2y ago

BEDLORE Waterproof Mattress Protector King Size Noiseless Mattress Pad with Deep Pocket 6-18 Depth Soft Breathable Bed Mattress Cover Washable for Home Bedroom Hotel (White)
- Price
- $27.98
- Rating
- 4.6/5
- Reviews
- 23,362
- Age
- 3y ago

Utopia Bedding Waterproof Mattress Protector King Size Bed Premium 200 GSM Bamboo Viscose Cooling Mattress Cover Soft and Breathable Fitted Style with 17 Inches Deep Stretchable Pockets
- Price
- $21.31
- Rating
- 4.6/5
- Reviews
- 60,994
- Age
- 10y ago

Amazon Basics Waterproof Mattress Protector Bed Bug and Dust Mite Barrier King White
- Price
- $15.33
- Rating
- 4.5/5
- Reviews
- 1,147
- Age
- 1y ago
Newest
by launch date
Amazon Basics Waterproof Mattress Protector Bed Bug and Dust Mite Barrier King White
- Price
- $15.33
- Rating
- 4.5/5
- Reviews
- 1,147
- Age
- 1y ago

Utopia Bedding Waterproof Mattress Protector King Size (Gray) Premium 3D Air Soft Fabric Mattress Cover Fits 17 Inches Deep Breathable Fitted Style with Stretchable Pockets
- Price
- $21.54
- Rating
- 4.6/5
- Reviews
- 1,903
- Age
- 1y ago

OhGeni 100% Waterproof Mattress Protector King Size Mattress Soft Pad Pet Hair & Bedwetting Resistant Cooling Breathable Fitted Sheets Washable Bed Cover Over 99 Count Hex Bumps
- Price
- $26.15
- Rating
- 4.6/5
- Reviews
- 4,230
- Age
- 2y ago

SafeRest Sleepure Waterproof Mattress Protector King Size - Viscose Derived from Bamboo - Fitted with Stretchable Pockets - Machine Washable Cotton King Mattress Cover for Bed
- Price
- $39.57
- Rating
- 4.6/5
- Reviews
- 280,383
- Age
- 2y ago

Waterproof Mattress Protector King Size Mattress Cover Protector Smooth Top Mattress Protector for Kids Breathable Skin Friendly and Noiseless Fitted Sheet King Size Polyester
- Price
- $13.96
- Rating
- 4.4/5
- Reviews
- 7,849
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 62% of clicks. Leaders hold, but buyers still shop past them.
Brands
12 rising
Sellers
19
Est. top-5 brand share
83%
Top 20: 100%
Est. top-5 click share
62%
Top 20: 100%
Open market
12%
- BEDLORE27%
- Utopia Bedding26%
- PlushDeluxe19%
- SafeRest7%
- MUXHOMO5%
- Amazon Basics5%
- Open — no brand owns it (6 brands, 12%)
Demand
King Mattress Protector search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.2×
Search terms
Top King Mattress Protector search terms shoppers use
The exact words shoppers type, with estimated 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.
“NOT WATER PROOF”
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
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common King Mattress Protector questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









