---
title: "Double Mattresses — £13.0M/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/double-mattresses"
last_updated: "2026-08-01T02:10:24.767Z"
locale: en
meta:
description: "Niche score 66/100 · £13.0M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 66/100 · £13.0M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Double Mattresses — £13.0M/yr Amazon UK Niche (2026) - Flapen"
---
# **double mattresses**
**Worth a look**
Shows a $13.0M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 100Growth 19Conversion 26Competition 91Returns 96Price range 17Avg price 74Brand share 88Review moat 56Quality gap 60
**Market size**
**Incredible****£13.0M**
£13.0M/yr · 6.1M searches
**Returns**
**Incredible****0.8%**
return rate — above 5% kills the launch gate
**Competition**
**Great****24%**
top-5 click share — an open shelf
**Brand share**
**Great****47%**
top-5 brand share — no brand owns this niche
**Avg price**
**Good****£102.96**
avg listing price — sweet spot $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,246.71**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Okay****2.1%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-12.4%**
90-day search growth — must beat 0% to launch
**Price range**
**Bad****£28.60–£459.21**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%") [** High Price**](https://flapen.com/research/niches?market=uk&signal=high_price "Avg price > $50")
According to Flapen's Amazon United Kingdom niche tracking, double mattresses is a £13.0M/yr Amazon United Kingdom market (6.1M searches/yr). The top 5 brands hold 47% of demand. Verdict: Worth a look — 66/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **double mattresses market data**
- **Units sold / yr**
- **100K–125K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **£10.3M–£12.9M**
- units × avg price
- **Conversion rate**
- **2.1%**
- **Avg BSR**
- **#69**
- **Page quality**
- **0%**
- **Prime**
- **86%**
- **Sponsored**
- **98%**
- **Out of stock**
- **19.7%**
- **Avg brand age**
- **44 months**
- **Avg seller age**
- **181 days**
## **Competition & brand share**
Clicks spread well past the top 5 (24% combined) — an open shelf where new products get seen.
**Brands**
**41 **▼falling
**Sellers**
**61**
**Top-5 brand share**
**47%**
Top 20: 85%
**Top-5 click share**
**24%**
Top 20: 52%
**Open market**
**49%**
- dosleeps14% - BEDZONLINE12% - Twirest8% - Uliyati7% - TeQsli6% - Sleremind5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -12.4% search growth over the last 90 days.
150K100KSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/home-garden/double-mattresses/trend)
## **Top double mattresses search terms**
- **double mattresses**1.6M/yr-10.8%1.8% conv. - **king size mattress**992K/yr-13.2%1.1% conv. - **double mattress**709K/yr-8.2%2.1% conv. - **small double mattresses**463K/yr-14.1%1.3% conv. - **memory foam mattress**451K/yr-19.8%0.5% conv. - **double bed mattress**232K/yr-1.9%1.3% conv. - **super king mattress**251K/yr-20.5%0.4% conv. - **small double mattress**242K/yr-16.0%1.2% conv. - **double memory foam mattress**153K/yr-22.4%1.8% conv. - **kingsize mattress**136K/yr-14.4%1.3% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/double-mattresses/search-terms)
## **Top double 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%2%£259K4%£519K6%£778K8%£1.0M101001K10K Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**BEDZONLINE Hybrid Memory Foam & Spring Mattress - UK Double | 190 x 135 x 20 cm | Breathable & Hypoallergenic | Medium-Firm Support | Standard Tight Top Comfort | Durable & Long-Lasting**BEDZONLINE**£69.21**4.0★6,946 rev](https://www.amazon.co.uk/dp/B0F2TJN2SH) [2**Black Luxury Budget mattress. Cool Touch Quilted. Perfect for Bunk Beds Cabin Beds etc Single / 3ft Small Double / 4ft Double / 4ft6 King / 5ft /6ft (Single)**Generic**£44.68**4.1★132 rev](https://www.amazon.co.uk/dp/B0CQ2RDXVL) [3**dosleeps Double Mattress 4FT6 | 10 Memory Foam & Pocket Sprung | 9-Zone Orthopedic Support Breathable Cover Motion Isolation Medium Firm Edge Support 135x190x25cm**dosleeps**£129.86**4.5★3,412 rev](https://www.amazon.co.uk/dp/B0FM2XYSMZ) [4**dosleeps King Size Mattress 5FT | 10.6 Extra Thick Memory Foam & Pocket Sprung | 9-Zone Orthopedic Support Medium Firm Motion Isolation Edge Support 150x200x27cm**dosleeps**£173.16**4.4★2,598 rev](https://www.amazon.co.uk/dp/B0FYMWDJ9C) [5**Uliyati Double Mattresses Memory Foam Mattress Breathable Mattress for Cool Sleep & Pressure Relief - Medium Mattress 135x190x20CM CertiPUR-US Certified**Uliyati**£93.11**4.6★452 rev](https://www.amazon.co.uk/dp/B0DK4Z7QLS)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**SANA SLEEP 4FT6 Double Mattress 11 Zone Orthopedic Double Mattress Pocket Spring Mattress Motion Isolation Pressure Relief Supportive & Comfortable 135x190x27 cm**SANA SLEEP**£92.02**50 rev4mo ago](https://www.amazon.co.uk/dp/B0GSK33C6W) [**Matoresu Hybrid Double Mattresses 4ft6 25cm Medium Firm Pocket Sprung 7-Zone OEKO-TEX Certified Motion Isolation & Pressure Relief for Back Pain 135x190cm**Matoresu**£80.78**368 rev6mo ago](https://www.amazon.co.uk/dp/B0G7XCSRJR) [**Queblox Double Mattress 4FT6 11Inch Memory Foam 7 Zone Orthopedic Double Mattress Pocket Sprungs Medium Firm - Motion Isolation 135x190x28 cm**Queblox**£87.58**108 rev8mo ago](https://www.amazon.co.uk/dp/B0G1YPLXD1) [**Twirest Double Mattress 22CM Gel Memory Foam Pocket Sprung Mattresses with Breathable Soft Fabric for Cool Sleep Mattresses Double for Pressure Relief Medium Firm Mattress in a Box 135x190x22cm**Twirest**£83.32**129 rev8mo ago](https://www.amazon.co.uk/dp/B0FZKQFBYZ) [**NIXNAP King Mattress 5FT 10 Inch Hybrid Mattress Gel Memory Foam & Individually Pocket Springs 9-Zone Orthopaedic Medium Firm for Pressure & Back Pain Relief 150x200x25 cm**NIXNAP**£125.73**138 rev8mo ago](https://www.amazon.co.uk/dp/B0FZBGRZ6J)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**SANA SLEEP 4FT6 Double Mattress 11 Zone Orthopedic Double Mattress Pocket Spring Mattress Motion Isolation Pressure Relief Supportive & Comfortable 135x190x27 cm**SANA SLEEP**£92.02**4.5★**▲ 220%**](https://www.amazon.co.uk/dp/B0GSK33C6W) [**Matoresu Hybrid Double Mattresses 4ft6 25cm Medium Firm Pocket Sprung 7-Zone OEKO-TEX Certified Motion Isolation & Pressure Relief for Back Pain 135x190cm**Matoresu**£80.78**4.4★**▲ 213%**](https://www.amazon.co.uk/dp/B0G7XCSRJR) [**Queblox Double Mattress 4FT6 11Inch Memory Foam 7 Zone Orthopedic Double Mattress Pocket Sprungs Medium Firm - Motion Isolation 135x190x28 cm**Queblox**£87.58**4.8★**▲ 182%**](https://www.amazon.co.uk/dp/B0G1YPLXD1) [**TeQsli 5FT King Mattress 10 Inch Gel Memory Foam Pocket Spring Hybrid Mattress Medium Firm Back Pain & Pressure Relief - Edge Support & OEKO-TEX Certified 150x200x25cm**TeQsli**£123.61**4.5★**▲ 69%**](https://www.amazon.co.uk/dp/B09XJZ1HBY) [**Novilla 4FT6 Double Pocket Sprung Mattresses 8 Inch Medium Soft Spring Mattress with Breathable Sprung System Cool Touch Oeko Fabric 135x190x20cm**Novilla**£59.14**4.0★**▲ 66%**](https://www.amazon.co.uk/dp/B0D14FSDDV)
**~~View all trending →~~**
## **What buyers say about double mattresses**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Comfort-Overall**35%
*“Comfortable and supportive”*
**Value For Money**16%
*“Fair price”*
**Quality-Overall**14%
*“Amazing quality”*
**Foam**11%
*“This is a really good memory foam mattress”*
**Soft Feel**5%
*“Very smoothy and comfortable”*
**Size-Overall**2%
*“It's true to size”*
**Thickness**2%
*“Lovely and thick”*
**Sags/Sinks**2%
*“you dont sink”*
**Advertised Vs Actual Product**2%
*“As advertised”*
**Cushion**1%
*“still cushioned enough to stay comfortable”*
### **What buyers complain about **
**Comfort-Overall**12%
*“it caused more discomfort”*
**Quality-Overall**11%
*“its too low quality”*
**Size-Overall**5%
*“doesnt fit”*
**Hard Feel**5%
*“For me its a bit too soft”*
**Value For Money**5%
*“Feels more expensive than than it is”*
**Foam**4%
*“Not memory foam”*
**Durability**4%
*“seem not durable”*
**Sags/Sinks**4%
*“Then starts to sink”*
**Weight Heavy**3%
*“Box is very heavy”*
**Advertised Vs Actual Product**3%
*“Bit misleading”*
### **Top return reasons **
**Size-Overall**36%
**Comfort-Overall**15%
**Quality-Overall**12%
**Advertised Vs Actual Product**6%
**Soft Feel**5%
**Hard Feel**4%
**Cushion**2%
**Thickness**2%
**Functionality-Overall**1%
**Strength**1%
## **Common questions**
- **Is double mattresses profitable to sell on Amazon United Kingdom?**
- The niche generates £13.0M/yr across 92 tracked products. 32 of 34 products launched in the last 360 days are still selling. 90-day search growth is -12.4%. Flapen's verdict: Worth a look (66/100).
- **How competitive is the double mattresses niche?**
- 41 brands and 61 sellers compete. The top 5 products take 24% of clicks and top 5 brands hold 47% of demand.
- **What do buyers complain about in double mattresses?**
- Top complaints mined from reviews: Comfort-Overall, Quality-Overall, Size-Overall. The return rate is 0.8%.
- **When does demand for double mattresses peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the double mattresses niche?**
- Listings span £28.60–£459.21; the average listing price is £102.96 (sweet spot $15–$100). The average incumbent carries 1,247 reviews — the moat a new listing must climb.
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