---
title: "King Size Duvet — £2.0M/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/king-size-duvet"
last_updated: "2026-08-01T04:06:54.757Z"
locale: en
meta:
description: "Niche score 60/100 · £2.0M/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 60/100 · £2.0M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "King Size Duvet — £2.0M/yr Amazon UK Niche (2026) - Flapen"
---
# **king size duvet**
**Worth a look**
Shows low returns (0.3%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 95Growth 15Conversion 69Competition 60Returns 99Price range 89Avg price 85Brand share 42Review moat 20Quality gap 37
**Returns**
**Incredible****0.3%**
return rate — above 5% kills the launch gate
**Market size**
**Incredible****£2.0M**
£2.0M/yr · 1.7M searches
**Price range**
**Great****£11.21–£59.17**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****£19.14**
avg listing price — sweet spot $15–$100
**Conversion**
**Good****6.3%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Good****49%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****80%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****13,645.1**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-19.5%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, king size duvet is a £2.0M/yr Amazon United Kingdom market (1.7M searches/yr). The top 5 brands hold 80% of demand. Demand peaks in Jan–Sep–Oct–Nov. Verdict: Worth a look — 60/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **king size duvet market data**
- **Units sold / yr**
- **80K–100K**
- avg 2,000–2,500/product
- **Revenue / yr**
- **£1.5M–£1.9M**
- units × avg price
- **Conversion rate**
- **6.3%**
- **Avg BSR**
- **#25**
- **Page quality**
- **0%**
- **Prime**
- **40%**
- **Sponsored**
- **83%**
- **Out of stock**
- **0.2%**
- **Avg brand age**
- **59 months**
- **Avg seller age**
- **187 days**
## **Competition & brand share**
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▲rising
**Sellers**
**46**
**Top-5 brand share**
**80%**
Top 20: 100%
**Top-5 click share**
**49%**
Top 20: 87%
**Open market**
**17%**
- Slumberdown39% - Silentnight16% - Utopia Bedding14% - Siebenschläfer6% - Casabella5% - MH Home3% - Open — no brand owns it (8 brands, 17%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -19.5% search growth over the last 90 days.
80K60KSpike '24Black Friday '24Prime Day '25Spike '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Sep, Oct, Nov · busiest ÷ quietest = 2.5×
[**Open Trend **](https://flapen.com/research/uk/home-garden/king-size-duvet/trend)
## **Top king size duvet search terms**
- **king size duvet**852K/yr-23.5%5.6% conv. - **duvet king size**309K/yr-6.9%3.7% conv. - **king duvet**94K/yr-19.6%5.7% conv. - **kingsize duvet**70K/yr-14.7%5.1% conv. - **king size quilt**50K/yr-14.8%4.6% conv. - **king size duvet 10.5 tog**56K/yr-20.3%5.8% conv. - **cotton duvet**29K/yr+4.0%0.1% conv. - **duvets king size**27K/yr-0.2%4.1% conv. - **queen size duvet**25K/yr-26.6%0.7% conv. - **duvet kings size**22K/yr-36.0%4.9% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/king-size-duvet/search-terms)
## **Top king size duvet 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%5%£101K10%£201K15%£302K20%£402K101001K10K100K 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**Slumberdown Cosy Nights King Size Duvet 10.5 Tog - Breathable & Soft All Year-Round King Quilt for Summer Autumn & Winter | UK-Made Non-Allergenic & Washable (225 x 220cm)**Slumberdown**£17.14**4.6★9,619 rev](https://www.amazon.co.uk/dp/B07CQ4ZJHD) [2**Utopia Bedding Coverless King Size Duvet 10.5 Tog Box Stitched Design White**Utopia Bedding**£11.44**4.5★81,539 rev](https://www.amazon.co.uk/dp/B075JGHHCG) [3**Silentnight Deep Sleep King Size Duvet 10.5 Tog All Year Round Soft and Comfortable Quilt Duvet Ideal for Spring Summer Autumn and Winter Hypoallergenic and Machine Washable 225x220cm - King**Silentnight**£23.16**4.7★21,571 rev](https://www.amazon.co.uk/dp/B075X1V6G1) [4**Slumberdown Cool Summer Nights 4.5 Tog King Size Duvet - Lightweight & Breathable UK Made King Size Quilt Non-Allergenic & Washable | Perfect Summer Duvet for Hot Nights (225 x 220cm)**Slumberdown**£15.42**4.5★2,990 rev](https://www.amazon.co.uk/dp/B07XDW7TH3) [5**Casabella King Size Duvet 13.5 Tog - Premium Quality King Duvet for Year-Round Comfort - Soft Touch Cover Hypoallergenic Machine Washable - (230cm x 220cm)**Casabella**£15.95**4.5★558 rev](https://www.amazon.co.uk/dp/B0CKQTQBNL)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Rohi Anti Allergy King Size Duvet 10.5 Tog All Season Duvets Soft & Breathable Luxurious Hollowfibre Quilt with Corvin Cover Midweight Comforter King Bed Duvet (All Season)**Rohi**£14.38**2,816 rev10mo ago](https://www.amazon.co.uk/dp/B01CJQ3WDO) [**MH Home King Duvet 13.5 Tog All Season Comforter Lightweight Skin Friendly Quilt Down Alternative Ultra-Soft Plush Breathable Duvet (13.5 Tog King)**MH Home**£15.04**94 rev11mo ago](https://www.amazon.co.uk/dp/B0FLDDXMS5) [**Quality Beddings King Duvet 10.5 Tog | Breathable Duvets for All Year Round Comfort | Anti-allergy Duvet with Hollowfibre Filling | Hypoallergenic Made in UK Quilt (King 230x220cm)**Quality Beddings**£13.34**231 rev1y ago](https://www.amazon.co.uk/dp/B0DC42JVYH) [**Casabella King Size Duvet 13.5 Tog - Premium Quality King Duvet for Year-Round Comfort - Soft Touch Cover Hypoallergenic Machine Washable - (230cm x 220cm)**Casabella**£15.95**558 rev2y ago](https://www.amazon.co.uk/dp/B0CKQTQBNL) [**BedLooms Summer Duvet King Size 4.5 Tog Antiallergic Hollowfiber Filling Quilt Skin Friendly king Size Duvet 230 cm x 220 cm - UK Made Duvets**BedLooms**£11.33**511 rev2y ago](https://www.amazon.co.uk/dp/B0CW1NR7V7)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**BedLooms Summer Duvet King Size 4.5 Tog Antiallergic Hollowfiber Filling Quilt Skin Friendly king Size Duvet 230 cm x 220 cm - UK Made Duvets**BedLooms**£11.33**4.4★**▲ 311%**](https://www.amazon.co.uk/dp/B0CW1NR7V7) [**Siebenschläfer Light Summer Duvet (4.5 Tog King Size)**Siebenschläfer**£19.33**4.7★**▲ 217%**](https://www.amazon.co.uk/dp/B0BSV9KHP1) [**Slumberdown Cool Summer Nights 4.5 Tog King Size Duvet - Lightweight & Breathable UK Made King Size Quilt Non-Allergenic & Washable | Perfect Summer Duvet for Hot Nights (225 x 220cm)**Slumberdown**£15.42**4.5★**▲ 213%**](https://www.amazon.co.uk/dp/B07XDW7TH3) [**Quality Beddings King Duvet 10.5 Tog | Breathable Duvets for All Year Round Comfort | Anti-allergy Duvet with Hollowfibre Filling | Hypoallergenic Made in UK Quilt (King 230x220cm)**Quality Beddings**£13.34**4.3★**▲ 200%**](https://www.amazon.co.uk/dp/B0DC42JVYH) [**MH Home King Duvet 13.5 Tog All Season Comforter Lightweight Skin Friendly Quilt Down Alternative Ultra-Soft Plush Breathable Duvet (13.5 Tog King)**MH Home**£15.04**4.0★**▲ 160%**](https://www.amazon.co.uk/dp/B0FLDDXMS5)
**~~View all trending →~~**
## **What buyers say about king size duvet**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**24%
*“Best Quality”*
**Value For Money**13%
*“Good price”*
**Warmth**13%
*“Keeps you warm”*
**Weight Light**10%
*“Lightweight and easy to handle”*
**Comfort-Overall**9%
*“Very comfortable”*
**Soft Feel**6%
*“material is soft”*
**Size-Overall**4%
*“Fits well”*
**Stitch/Finish/Polish**3%
*“Stitching is really good”*
**Advertised Vs Actual Product**3%
*“As advertised”*
**Thickness**2%
*“Good thick duvet”*
### **What buyers complain about **
**Quality-Overall**18%
*“Poor quality control”*
**Thickness**17%
*“Doesnt seem half as thick as the others. same tog”*
**Value For Money**9%
*“this isnt worth the money”*
**Warmth**4%
*“this is not warm enough for me in winter”*
**Stitch/Finish/Polish**4%
*“the poor stitching”*
**Stain Resistance**3%
*“There was also a large stain”*
**Size-Overall**3%
*“Bit bigger”*
**Advertised Vs Actual Product**3%
*“It's false advertising”*
**Material Quality**2%
*“Made from that cheap fibrous stiff cotton outer”*
**Breathability**2%
*“Not breathable”*
### **Top return reasons **
**Size-Overall**36%
**Quality-Overall**12%
**Material Quality**8%
**Thin**6%
**Stitch/Finish/Polish**5%
**Weight Heavy**3%
**Thickness**3%
**Advertised Vs Actual Product**3%
**Stain Resistance**3%
**Warmth**2%
## **Common questions**
- **Is king size duvet profitable to sell on Amazon United Kingdom?**
- The niche generates £2.0M/yr across 30 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -19.5%. Flapen's verdict: Worth a look (60/100).
- **How competitive is the king size duvet niche?**
- 14 brands and 46 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 80% of demand.
- **What do buyers complain about in king size duvet?**
- Top complaints mined from reviews: Quality-Overall, Thickness, Value For Money. The return rate is 0.3%.
- **When does demand for king size duvet peak?**
- Demand peaks in Jan–Sep–Oct–Nov; the busiest month runs 2.5× the quietest.
- **What does it cost to enter the king size duvet niche?**
- Listings span £11.21–£59.17; the average listing price is £19.14 (sweet spot $15–$100). The average incumbent carries 13,645 reviews — the moat a new listing must climb.
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