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super king mattresses

Skip it

Prices mostly outside the sweet spot ($96.53–$459.21) — this niche doesn't clear our bar today.

Market size 48Growth 24Conversion 17Competition 78Returns 80Price range 1Avg price 50Brand share 55Review moat 74Quality gap 50

Returns

Great1.8%

return rate — above 5% kills the launch gate

Competition

Great37%

top-5 click share — an open shelf

Review moat

Good551.45

avg incumbent reviews — the moat a new listing must climb

Brand share

Good72%

top-5 brand share — brands hold most of the demand

Quality gap

Good4.5★

avg incumbent rating — lower means beatable quality

Avg price

Good£175.03

avg listing price — sweet spot $15–$100

Market size

Okay£261K

£261K/yr · 111K searches

Growth

Bad-1.7%

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

Conversion

Bad1.3%

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

Price range

Bad£96.53–£459.21

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

According to Flapen's Amazon United Kingdom niche tracking, super king mattresses is a £261K/yr Amazon United Kingdom market (111K searches/yr). The top 5 brands hold 72% of demand. Demand peaks in Aug. Verdict: Skip it — 49/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

super king mattresses market data

Units sold / yr
1K–2K
avg 0–100/product
Revenue / yr
£219K–£263K
units × avg price
Conversion rate
1.3%
Avg BSR
#87
Page quality
0%
Prime
91%
Sponsored
95%
Out of stock
26.9%
Avg brand age
33 months
Avg seller age
202 days

Competition & brand share

Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.

Brands

21 falling

Sellers

31

Top-5 brand share

72%

Top 20: 99%

Top-5 click share

37%

Top 20: 78%

Open market

23%

  • TeQsli33%
  • dosleeps15%
  • SEZMOONSI9%
  • DAJIYUHC9%
  • Hiimgo6%
  • slily4%

Demand & seasonality

Weekly Amazon search volume, last 103 weeks — -1.7% search growth over the last 90 days.
7K5KSpike '24Black Friday '24Spike '25Prime Day '25Black Friday '25Spike '26DecMarJunAugNovMarMay

Peak months: Aug · busiest ÷ quietest = 2.7×

Top super king mattresses search terms

  • superking mattress30K/yr
  • super king memory foam mattress13K/yr
  • super king mattress firm8K/yr
  • firm super king mattress7K/yr
  • super king mattress memory foam7K/yr
  • superking memory foam mattress6K/yr
  • super king orthopaedic mattress4K/yr
  • mattress super king5K/yr
  • hybrid super king mattress6K/yr
  • super king pocket sprung mattress4K/yr
All search terms

Top super king mattresses 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.

0%3%£8K6%£16K9%£24K12%£31K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about super king mattresses

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

What buyers love

Comfort-Overall31%

“Really comfortable”

Quality-Overall19%

“Affordable price for this quality”

Value For Money18%

“reasonably priced”

Foam10%

“Good Mattress”

Soft Feel5%

“Very relaxing”

Sags/Sinks3%

“There are no signs of sagging or dipping in the middle”

Thickness2%

“Beautiful thick mattress need deep fitted sheets”

Size-Overall2%

“really great size”

Ease Of Use1%

“easy to open”

Durability1%

“durable”

What buyers complain about

Quality-Overall15%

“Very disappointed with the quality of this mattress”

Hard Feel10%

“Extra soft not good for back”

Comfort-Overall9%

“Not comfortable at all”

Value For Money6%

“We've had expensive ones”

Size-Overall6%

“Wrong size”

Durability6%

“metres sunk after 2.5 years”

Advertised Vs Actual Product5%

“definitely doesnt live up to the claims in the product description”

Sags/Sinks4%

“as theres noticeable sagging after a short period of use”

Height3%

“low down, matress spot on”

Design-Overall3%

“it is coming apart inside the top cover already something really bad with the construction”

Top return reasons

Size-Overall34%
Comfort-Overall18%
Quality-Overall9%
Hard Feel7%
Advertised Vs Actual Product6%
Functionality-Overall5%
Soft Feel4%
Cushion3%
Stain Resistance2%
Value For Money2%

Common questions

Is super king mattresses profitable to sell on Amazon United Kingdom?
The niche generates £261K/yr across 44 tracked products. 9 of 13 products launched in the last 360 days are still selling. 90-day search growth is -1.7%. Flapen's verdict: Skip it (49/100).
How competitive is the super king mattresses niche?
21 brands and 31 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 72% of demand.
What do buyers complain about in super king mattresses?
Top complaints mined from reviews: Quality-Overall, Hard Feel, Comfort-Overall. The return rate is 1.8%.
When does demand for super king mattresses peak?
Demand peaks in Aug; the busiest month runs 2.7× the quietest.
What does it cost to enter the super king mattresses niche?
Listings span £96.53–£459.21; the average listing price is £175.03 (sweet spot $15–$100). The average incumbent carries 551 reviews — the moat a new listing must climb.