Kingsize Mattress
prices mostly outside the sweet spot ($96.59–$320.37) — Kingsize Mattress doesn't clear our bar today.
Flapen Score
Ranks 3,444 of 5,777 Home & Garden niches · −3 vs the category median of 51
Is Kingsize Mattress profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Kingsize Mattress is a £98K/yr Amazon United Kingdom market (53K searches/yr). The top 5 brands hold 52% of demand. Demand peaks in Oct–Nov. Verdict: Skip it — 48/100.
Kingsize Mattress: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -16.4% over the last 90 days and 1.3% of searches end in a purchase.
£98K
revenue / yr
Who owns the niche?
The top 5 brands hold 52% of demand, so 48% of the market is open.
48%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.4★ — the gap to enter on.
0/100
page quality · 50 products
Top Kingsize Mattress products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
dosleeps King Size Mattress 5FT | 10.6 Extra Thick Memory Foam & Pocket Sprung | 9-Zone Orthopedic Support Medium Firm Motion Isolation Edge Support 150x200x27cm
- Price
- £173.16
- Rating
- 4.4/5
- Reviews
- 2,598
- Age
- 8mo ago

Uliyati King Size Mattresses 5FT 20CM Gel Memory Foam Mattress Breathable for Cool Sleep & Pressure Relief - Medium 150x200x20CM CertiPUR-US Certified
- Price
- £108.16
- Rating
- 4.6/5
- Reviews
- 452
- Age
- 1y ago

dosleeps King Size Mattress 5FT | 10 Memory Foam & Pocket Sprung | 9-Zone Orthopedic Support Breathable Cover Motion Isolation Edge Support Medium Firm 150x200x25cm
- Price
- £178.03
- Rating
- 4.5/5
- Reviews
- 3,412
- Age
- 11mo ago

NOFFA Orthopedic King Mattress | 12 King-Size Hybrid Mattresses | 7 Zone Orthopedic Mattresses Include Memory Foam & Pocket Sprungs 150x200x30cm
- Price
- £201.99
- Rating
- 4.9/5
- Reviews
- 106
- Age
- 8mo ago

Matoresu Hybrid Firm Kingsize Mattress (150x200cm) Extra Firm Support for Back Pain Side Sleepers & Elderly 25cm 7-Zone Pocket Sprung for Pressure Relief Motion Isolation & OEKO-TEX Certified
- Price
- £139.83
- Rating
- 4.4/5
- Reviews
- 368
- Age
- 7mo ago
Trending
90-day click momentum
SANA SLEEP 5FT King Mattress 11 Zone Orthopedic King Mattress Pocket Spring Mattress Motion Isolation Pressure Relief Supportive & Comfortable 150x200x27 cm
- Price
- £120.45
- Rating
- 4.5/5
- Reviews
- 50
- Age
- 4mo ago

NineLan Orthopaedic King Size Mattress 5FT for Back Pain Relief 10.6 Inch Hybrid 7-Zone Pocket Sprung Mattress with Cooling Gel Memory Foam & Breathable Knitted Cover Medium Firm 150x200x27cm
- Price
- £162.84
- Rating
- 4.7/5
- Reviews
- 61
- Age
- 6mo ago

SANA SLEEP 5FT King Mattress 9 Zone Orthopedic King Mattress Comfortable Home Pocket Spring Mattress Breathable Anti-Slip Design for Undisturbed Sleep 150x200x25 cm
- Price
- £122.77
- Rating
- 4.4/5
- Reviews
- 35
- Age
- 4mo ago

TeQsli King Size Mattress 5FT 10.6 Inch Gel Memory Foam Pocket Sprung Mattress Edge Support & Motion Isolation Spring Hybrid King Mattresses - Medium Firm Feel 150x200x27 cm
- Price
- £108.53
- Rating
- 4.5/5
- Reviews
- 964
- Age
- 6mo ago

Matoresu Hybrid Firm Kingsize Mattress (150x200cm) Extra Firm Support for Back Pain Side Sleepers & Elderly 25cm 7-Zone Pocket Sprung for Pressure Relief Motion Isolation & OEKO-TEX Certified
- Price
- £139.83
- Rating
- 4.4/5
- Reviews
- 368
- Age
- 7mo ago
Newest
by launch date
SANA SLEEP 5FT King Mattress 9 Zone Orthopedic King Mattress Comfortable Home Pocket Spring Mattress Breathable Anti-Slip Design for Undisturbed Sleep 150x200x25 cm
- Price
- £122.77
- Rating
- 4.4/5
- Reviews
- 35
- Age
- 4mo ago

SANA SLEEP 5FT King Mattress 11 Zone Orthopedic King Mattress Pocket Spring Mattress Motion Isolation Pressure Relief Supportive & Comfortable 150x200x27 cm
- Price
- £120.45
- Rating
- 4.5/5
- Reviews
- 50
- Age
- 4mo ago

Simba Simbatex Cool mattress 23 cm king 150 × 200 cm
- Price
- £320.37
- Rating
- 4.3/5
- Reviews
- 134
- Age
- 4mo ago

SEZMOONSI King Size Mattress Gel Memory Foam King Mattresses 5FT Hybrid Pocket Spring Kingsize Matress Orthopedic King Bed Mattresses with Breathable Soft Fabric 150x200x27cm
- Price
- £114.12
- Rating
- 4.1/5
- Reviews
- 121
- Age
- 5mo ago

NineLan Orthopaedic King Size Mattress 5FT for Back Pain Relief 10.6 Inch Hybrid 7-Zone Pocket Sprung Mattress with Cooling Gel Memory Foam & Breathable Knitted Cover Medium Firm 150x200x27cm
- Price
- £162.84
- Rating
- 4.7/5
- Reviews
- 61
- Age
- 6mo ago
Competition: brands, sellers & click share
Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.
Brands
29 falling
Sellers
43
Top-5 brand share
52%
Top 20: 92%
Top-5 click share
38%
Top 20: 71%
Open market
43%
- dosleeps21%
- Uliyati11%
- TeQsli10%
- NOFFA6%
- slily5%
- SEZMOONSI5%
Kingsize Mattress demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Oct, Nov · busiest ÷ quietest = 2.6×
Top Kingsize Mattress search terms shoppers use
The exact queries shoppers type, with 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
What reviews say buyers love and hate about Kingsize Mattress
What buyers mention most, as a share of all reviews.
What buyers love
90% of reviews“Comfortable and supportive”
“Money well spent”
“Excellent quality mattress”
“Good firm mattress”
“Its soft”
What buyers complain about
58% of reviews“It does not provide the support or comfort that was advertised”
“Debatable quality so far”
“To hard for a mattress”
“Not as described”
“Fault after a few months use”
Kingsize Mattress return rate & reasons
Why buyers send it back, as a share of all return requests.
1.3%
Return rate
37%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Kingsize Mattress questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









