---
title: "4.5 Tog Duvet King Size — £392K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/4-5-tog-duvet-king-size"
last_updated: "2026-07-31T09:03:42.739Z"
locale: en
meta:
description: "Niche score 67/100 · £392K/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 67/100 · £392K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "4.5 Tog Duvet King Size — £392K/yr Amazon UK Niche (2026) - Flapen"
---
# **4.5 tog duvet king size**
**Worth a look**
Shows demand growing +258.4% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 55Growth 99Conversion 77Competition 64Returns 98Price range 57Avg price 71Brand share 43Review moat 22Quality gap 45
**Growth**
**Incredible****+258.4%**
90-day search growth — must beat 0% to launch
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****7.5%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****£14.49**
avg listing price — sweet spot $15–$100
**Competition**
**Good****47%**
top-5 click share — leaders hold, buyers still browse
**Price range**
**Good****£8.86–£23.00**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****£392K**
£392K/yr · 360K searches
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****79%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Bad****10,081.41**
avg incumbent reviews — the moat a new listing must climb
**Signals**[** Trending**](https://flapen.com/research/niches?market=uk&signal=trending "Search growth > 100% (90d)")
According to Flapen's Amazon United Kingdom niche tracking, 4.5 tog duvet king size is a £392K/yr Amazon United Kingdom market (360K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 67/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **4.5 tog duvet king size market data**
- **Units sold / yr**
- **20K–25K**
- avg 750–1,000/product
- **Revenue / yr**
- **£290K–£362K**
- units × avg price
- **Conversion rate**
- **7.5%**
- **Avg BSR**
- **#27**
- **Page quality**
- **0%**
- **Prime**
- **32%**
- **Sponsored**
- **88%**
- **Out of stock**
- **0.5%**
- **Avg brand age**
- **53 months**
- **Avg seller age**
- **181 days**
## **Competition & brand share**
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**16 **▼falling
**Sellers**
**30**
**Top-5 brand share**
**79%**
Top 20: 100%
**Top-5 click share**
**47%**
Top 20: 85%
**Open market**
**18%**
- Silentnight29% - Slumberdown27% - Siebenschläfer15% - Linens Limited4% - BedLooms4% - Brentfords3% - Open — no brand owns it (10 brands, 18%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +258.4% search growth over the last 90 days.
40K30KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: May, Jun, Jul · busiest ÷ quietest = 12.6×
[**Open Trend **](https://flapen.com/research/uk/home-garden/4-5-tog-duvet-king-size/trend)
## **Top 4.5 tog duvet king size search terms**
- **summer duvet king size**68K/yr+410.8%7.0% conv. - **4.5 tog duvet king size**82K/yr+172.4%7.5% conv. - **summer duvet**57K/yr+344.5%2.1% conv. - **summer quilt king size**17K/yr+284.2%6.4% conv. - **summer quilt**17K/yr+296.3%1.3% conv. - **king size duvet 4.5 tog**22K/yr+155.3%9.2% conv. - **king size summer duvet**15K/yr+271.0%7.2% conv. - **4.5 tog duvet**15K/yr+195.8%1.8% conv. - **summer king size duvet**8K/yr+249.9%8.0% conv. - **king size summer duvet 4.5 tog**7K/yr+382.6%9.9% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/4-5-tog-duvet-king-size/search-terms)
## **Top 4.5 tog duvet king size 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%£20K10%£39K15%£59K20%£78K1001K10K100K 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 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) [2**Siebenschläfer Light Summer Duvet (4.5 Tog King Size)**Siebenschläfer**£19.33**4.7★25,334 rev](https://www.amazon.co.uk/dp/B0BSV9KHP1) [3**Silentnight Summer Breeze 4.5 Tog King Duvet - Lightweight Low Tog Cooler Summer Duvet Quilt Ideal for Warm Nights and Hot Sleepers - Hypoallergenic and Machine Washable - King**Silentnight**£17.04**4.6★12,200 rev](https://www.amazon.co.uk/dp/B00TQWMVPK) [4**Silentnight Summer Breeze 4.5 Tog Single Duvet - Lightweight Low Tog Cooler Summer Duvet Quilt Ideal for Warm Nights and Hot Sleepers - Hypoallergenic and Machine Washable - Single**Silentnight**£13.96**4.6★12,200 rev](https://www.amazon.co.uk/dp/B00TQWMVMS) [5**Slumberdown Anti Allergy King Size Duvet 4.5 Tog - Allergy UK Approved Lightweight Summer Duvet for Allergy Sufferers - Made in the UK Anti Bacterial & Machine Washable King Quilt (225 x 220cm)**Slumberdown**£16.75**4.6★53,320 rev](https://www.amazon.co.uk/dp/B07CNWM35D)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Silentnight Summer Breeze 1.0 Tog Duvet - Soft & Lightweight Summer Duvet Quilt Ideal for Warm Nights and Hot Sleepers - Breathable Cool Comfort - Hypoallergenic and Machine Washable Single**Silentnight**£12.27**1,983 rev1y ago](https://www.amazon.co.uk/dp/B0DVLX5PMC) [**Linens Limited King Size Duvet 2.5 Tog Made in the UK Easy Care Summer Fresh Quilt Soft and Comfy Polypropylene Hollowfibre Machine Washable (White)**Linens Limited**£14.44**8,482 rev2y ago](https://www.amazon.co.uk/dp/B0D9H31563) [**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) [**Aisbo King Size Duvet 4.5 Tog - Summer Duvet King Size with Corner Tabs Soft Lightweight Quilt for Kingsize Bed Duvet Insert with 150 GSM Filling 220x230 cm**Aisbo**£23.00**189 rev2y ago](https://www.amazon.co.uk/dp/B0CPXZRB99) [**Silentnight Summer Breeze 2.5 Tog Double Duvet - Lightweight Low Tog Summer Duvet Quilt Ideal for Warm Nights and Hot Sleepers - Hypoallergenic and Machine Washable - Double - 200x200cm**Silentnight**£15.17**1,983 rev3y ago](https://www.amazon.co.uk/dp/B0C5JSBG9Z)
**~~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★**▲ 46%**](https://www.amazon.co.uk/dp/B0CW1NR7V7) [**Yorkshire Bedding Summer Duvet King Size 4.5 Tog Hypoallergenic Lightweight King Size Duvet Quilt - UK Made Duvets**Yorkshire Bedding**£11.07**4.4★**▲ 41%**](https://www.amazon.co.uk/dp/B087Q5Z45Q) [**Aisbo King Size Duvet 4.5 Tog - Summer Duvet King Size with Corner Tabs Soft Lightweight Quilt for Kingsize Bed Duvet Insert with 150 GSM Filling 220x230 cm**Aisbo**£23.00**4.6★**▲ 39%**](https://www.amazon.co.uk/dp/B0CPXZRB99) [**Siebenschläfer Light Summer Duvet (4.5 Tog Double Size)**Siebenschläfer**£17.26**4.7★**▲ 38%**](https://www.amazon.co.uk/dp/B0BSV7YD6Z) [**Slumberdown Cool Summer Nights 4.5 Tog Double Duvet - Lightweight & Breathable UK Made Double Quilt Non-Allergenic & Washable | Perfect Summer Duvet for Hot Nights (200 x 200cm)**Slumberdown**£14.38**4.5★**▲ 32%**](https://www.amazon.co.uk/dp/B07XFR2RH7)
**~~View all trending →~~**
## **What buyers say about 4.5 tog duvet king size**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**27%
*“Good quality item arrived when expected”*
**Weight Light**18%
*“lightweight and comfortable”*
**Value For Money**10%
*“Excellent value”*
**Warmth**9%
*“Lovely and warm”*
**Comfort-Overall**8%
*“Very comfortable”*
**Soft Feel**6%
*“Nice and soft”*
**Stitch/Finish/Polish**3%
*“no issues with stitching”*
**Upholstery/Fabric Quality**3%
*“the quality of fabric”*
**Size-Overall**2%
*“Fits perfect”*
**Advertised Vs Actual Product**2%
*“Exactly what I wanted”*
### **What buyers complain about **
**Quality-Overall**28%
*“Poor quality control”*
**Size-Overall**10%
*“Rubbish sizes”*
**Material Quality**8%
*“The material is cheap”*
**Warmth**7%
*“Duvet too warm”*
**Thickness**6%
*“this one is very thick for the tog rating”*
**Stitch/Finish/Polish**6%
*“thus expect the entire stitching will eventually become un-stitched”*
**Value For Money**4%
*“not worth £19, pretty basic”*
**Advertised Vs Actual Product**3%
*“Not like on the picture, very misleading”*
**Durability**3%
*“All the filling has formed clumps after just a couple of months of use”*
**Cushion**3%
*“the padding is not even so it has lumps all over”*
### **Top return reasons **
**Size-Overall**28%
**Quality-Overall**14%
**Material Quality**13%
**Thin**11%
**Stitch/Finish/Polish**6%
**Advertised Vs Actual Product**4%
**Thickness**4%
**Weight Light**2%
**Warmth**2%
**Stain Resistance**1%
## **Common questions**
- **Is 4.5 tog duvet king size profitable to sell on Amazon United Kingdom?**
- The niche generates £392K/yr across 34 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +258.4%. Flapen's verdict: Worth a look (67/100).
- **How competitive is the 4.5 tog duvet king size niche?**
- 16 brands and 30 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 79% of demand.
- **What do buyers complain about in 4.5 tog duvet king size?**
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Material Quality. The return rate is 0.4%.
- **When does demand for 4.5 tog duvet king size peak?**
- Demand peaks in May–Jun–Jul; the busiest month runs 12.6× the quietest.
- **What does it cost to enter the 4.5 tog duvet king size niche?**
- Listings span £8.86–£23.00; the average listing price is £14.49 (sweet spot $15–$100). The average incumbent carries 10,081 reviews — the moat a new listing must climb.
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