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Kingsize Mattress

Fail

Prices span $96.59–$320.37, mostly outside the sweet spot, so Kingsize Mattress is a Fail.

Flapen Score
48
48 / 100
Ranks 3,444 of 5,777 Home & Garden niches · −3 vs the category median of 51
Market size
£98K/yr53K searches / yr
90-day growth
-16.4%search demand this quarter
Competition
38%top-5 click share · 29 brands · 43 sellers

Flapen Score

Kingsize Mattress against its category

The dotted line is the Home & Garden average. Past it, Kingsize Mattress is stronger. Inside it, weaker.

48Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Kingsize Mattress market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Kingsize Mattress 53K times last year and spent an estimated £98K. The top 5 brands take 52% of clicks. Demand peaks in Oct–Nov. Flapen scores it 48 out of 100, a Fail.

01 · Demand

An estimated 1.3% of those searches ended in a purchase.

Shoppers searched for this 53K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 1.3% of those searches ended in a purchase. Searches in the last 90 days moved -16.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated £98K a year.

Searches, last 12 months
53K
Growth, 90 days vs prior 90
-16.4%
Conversion, latest week
1.3%
Market size, estimated
£98Ka year
Peak month
November2.6× the quietest month
Top search term
kingsize memory foam mattress5K searches a year

02 · Price

A sale here is worth £143.31.

Listings sell for £143.31 on average, from £96.59 to £320.37. Amazon reports units sold in ranges. This niche sold 500 to 750 a year. The average listing sells 0 to 100 of them. At £143.31 that is £0 to £14K a year per listing.

Average price
£143.31above the $15 to $100 sweet spot
Price range
£96.59–£320.37
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
500–750
Units per listing a year
0–100
Revenue per listing a year
£0–£14K
Returns
1.3%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is ads.

98% of listings pay for placement with sponsored ads. 96% ship with Prime. On an average day, 16.7% of listings are out of stock. The average listing ranks #93 within Furniture. It carries 637 reviews at 4.44 stars, so a new listing needs social proof before a better product.

Sponsored listings
98%
Prime listings
96%
Out of stock, average day
16.7%
Average rank
#93in Furniture
Average rating
4.44 starsAmazon United Kingdom average 4.36 stars
Average reviews
637per listing
Listings tracked
50

04 · Newcomers

20 of last year's 21 launches cleared the first-year sales bar.

21 products launched here in the last 12 months. 20 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 32 months on average, so a newcomer is not facing entrenched names.

Launched, last 12 months
21
Successful launches
20Amazon's first-year sales bar
Average brand age
32 months

Products

Top Kingsize Mattress 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 27, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 38% of clicks, no more. An open shelf where new products get seen.

£0£4K£8K£12K£16K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

29 falling

Sellers

43

Est. top-5 brand share

52%

Top 20: 92%

Est. top-5 click share

38%

Top 20: 71%

Open market

43%

  • dosleeps21%
  • Uliyati11%
  • TeQsli10%
  • NOFFA6%
  • slily5%
  • SEZMOONSI5%

Demand

Kingsize Mattress search demand

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

4K3KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25DecMarJunAugNovMarMay

Peak months: Oct, Nov · busiest ÷ quietest = 2.6×

Search terms

Top Kingsize Mattress search terms shoppers use

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

  • kingsize memory foam mattress5K/yr
  • hybrid mattress king3K/yr
  • king size orthopaedic mattress memory foam4K/yr
  • king size extra firm mattress5K/yr
  • amazon king size mattress6K/yr
  • king size memory foam mattresses5K/yr
  • simba mattress king size uk5K/yr
  • king size hybrid mattress medium firm4K/yr
  • silent night king size mattresses3K/yr
  • medium king size hybrid mattress3K/yr

Reviews and returns

What reviews say buyers love and hate about Kingsize Mattress

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

35%of positive reviews mention “Comfort-Overall”
10%of negative reviews mention “Comfort-Overall”
1.3%of orders come back
“It does not provide the support or comfort that was advertised”
A buyer, on “Comfort-Overall”10% 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 Kingsize Mattress 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