---
title: "Super King Duvet 4.5 Tog — £102K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/super-king-duvet-4-5-tog"
last_updated: "2026-07-31T16:24:42.908Z"
locale: en
meta:
description: "Niche score 65/100 · £102K/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 65/100 · £102K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Super King Duvet 4.5 Tog — £102K/yr Amazon UK Niche (2026) - Flapen"
---
# **super king duvet 4.5 tog**
**Worth a look**
Shows low returns (0.4%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 25Growth 97Conversion 86Competition 64Returns 98Price range 81Avg price 81Brand share 51Review moat 23Quality gap 40
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Growth**
**Incredible****+185.1%**
90-day search growth — must beat 0% to launch
**Conversion**
**Great****9.7%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****£17.51**
avg listing price — sweet spot $15–$100
**Price range**
**Great****£8.54–£45.14**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****47%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Good****74%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****£102K**
£102K/yr · 60K searches
**Review moat**
**Bad****8,584.3**
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, super king duvet 4.5 tog is a £102K/yr Amazon United Kingdom market (60K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 65/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **super king duvet 4.5 tog market data**
- **Units sold / yr**
- **4K–5K**
- avg 100–250/product
- **Revenue / yr**
- **£70K–£88K**
- units × avg price
- **Conversion rate**
- **9.7%**
- **Avg BSR**
- **#30**
- **Page quality**
- **0%**
- **Prime**
- **30%**
- **Sponsored**
- **86%**
- **Out of stock**
- **1.4%**
- **Avg brand age**
- **56 months**
- **Avg seller age**
- **199 days**
## **Competition & brand share**
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**17 **▲rising
**Sellers**
**33**
**Top-5 brand share**
**74%**
Top 20: 100%
**Top-5 click share**
**47%**
Top 20: 83%
**Open market**
**21%**
- Slumberdown34% - Silentnight19% - Siebenschläfer11% - Brentfords6% - Sleepworks5% - Linens Limited4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +185.1% search growth over the last 90 days.
5K4KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 10.4×
[**Open Trend **](https://flapen.com/research/uk/home-garden/super-king-duvet-4-5-tog/trend)
## **Top super king duvet 4.5 tog search terms**
- **summer duvet super king size**11K/yr+340.1%6.6% conv. - **4.5 tog super king size duvet**14K/yr+140.0%8.2% conv. - **super king duvet 4.5 tog**14K/yr+71.4%8.1% conv. - **super king summer duvet**7K/yr+276.5%6.5% conv. - **superking duvet 4.5 tog**7K/yr+195.2%7.6% conv. - **superking summer duvet**3K/yr+526.3%6.2% conv. - **summer quilt super king size**3K/yr+178.8%6.3% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/super-king-duvet-4-5-tog/search-terms)
## **Top super king duvet 4.5 tog 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%£5K10%£10K15%£15K20%£20K101001K10K100K 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 Anti Allergy Super King Duvet 4.5 Tog - Allergy UK Approved Lightweight Summer Duvet for Allergy Sufferers - Made in the UK Anti Bacterial & Machine Washable Quilt (260 x 220cm)**Slumberdown**£16.42**4.6★53,320 rev](https://www.amazon.co.uk/dp/B0C7CTR45H) [2**Siebenschläfer Light Summer Duvet (4.5 Tog Super-King Size)**Siebenschläfer**£26.59**4.7★25,334 rev](https://www.amazon.co.uk/dp/B0BSV8T6K9) [3**Slumberdown Cool Summer Nights 4.5 Tog Super King Duvet - Lightweight & Breathable UK Made Superking Quilt Non-Allergenic & Washable | Perfect Summer Duvet for Hot Nights (260 x 220cm)**Slumberdown**£15.74**4.5★2,990 rev](https://www.amazon.co.uk/dp/B0C33VCFN3) [4**Silentnight Summer Breeze 4.5 Tog Duvet - Lightweight Low Tog Cooler Summer Duvet Quilt Ideal for Warm Nights and Hot Sleepers - Hypoallergenic and Machine Washable - Super King**Silentnight**£18.92**4.6★12,200 rev](https://www.amazon.co.uk/dp/B0C9QKHX1K) [5**Brentfords 4.5 Tog Super King Size Duvet Lightweight Summer Quilt Super King Size Anti Allergy Home Soft Comfort Bedding Hotel Quality Quilts Breathable Cool Duvet White**Brentfords**£10.54**4.2★984 rev](https://www.amazon.co.uk/dp/B096SZ84HG)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Slumberdown Summer Nights 4.5 Tog Super King Duvet - Lightweight & Breathable UK Made Superking Quilt Non-Allergenic & Washable | Perfect Summer Duvet for Hot Nights (260 x 220cm)**Slumberdown**£17.93**9,619 rev3mo ago](https://www.amazon.co.uk/dp/B0GYS2C6ZF) [**MK Home Textile Hotel Quality 4.5 Tog Super King Duvet Lightweight Summer Quilt Ultra-Soft Fluffy Hollowfibre Anti-Allergy Super King Bed Duvet Machine Washable**MK Home Textile**£13.23**52 rev6mo ago](https://www.amazon.co.uk/dp/B0GJ6CPXW4) [**RUIKASI 4.5 Tog Super King Size Duvet - Summer Duvet SuperKing Low Tog Duvet Thin 150GSM Lightweight Quilt Machine Washable 220x260cm**RUIKASI**£25.74**92 rev9mo ago](https://www.amazon.co.uk/dp/B0FXLSCMY7) [**Slumberdown Cool Summer Nights 4.5 Tog Super King Duvet - Lightweight & Breathable UK Made Superking Quilt Non-Allergenic & Washable | Perfect Summer Duvet for Hot Nights (260 x 220cm)**Slumberdown**£15.74**2,990 rev1y ago](https://www.amazon.co.uk/dp/B0C33VCFN3) [**BedFabtasy Luxury Super King Duvet 4.5 Tog Goose Feathers Down Summer Duvet600TC Breathable 100% Cotton Cover Down Proof FabricHotel Quality Super King Quilt with 8 Corner TabsMachine Washable**BedFabtasy**£45.14**791 rev1y ago](https://www.amazon.co.uk/dp/B0DS8HLZ7M)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Slumberdown Summer Nights 4.5 Tog Super King Duvet - Lightweight & Breathable UK Made Superking Quilt Non-Allergenic & Washable | Perfect Summer Duvet for Hot Nights (260 x 220cm)**Slumberdown**£17.93**4.6★**▲ 75%**](https://www.amazon.co.uk/dp/B0GYS2C6ZF) [**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★**▲ 65%**](https://www.amazon.co.uk/dp/B07XDW7TH3) [**Slumberdown Cool Summer Nights 4.5 Tog Super King Duvet - Lightweight & Breathable UK Made Superking Quilt Non-Allergenic & Washable | Perfect Summer Duvet for Hot Nights (260 x 220cm)**Slumberdown**£15.74**4.5★**▲ 59%**](https://www.amazon.co.uk/dp/B0C33VCFN3) [**RUIKASI 4.5 Tog Super King Size Duvet - Summer Duvet SuperKing Low Tog Duvet Thin 150GSM Lightweight Quilt Machine Washable 220x260cm**RUIKASI**£25.74**4.6★**▲ 46%**](https://www.amazon.co.uk/dp/B0FXLSCMY7) [**4.5 Tog Luxury Hotel Quality Respond Bounce Back King Bed Size Microfibre Duvet Quilt Embossed Soft Touch Ideal For Summer By Littens**Sleepworks**£17.29**4.6★**▲ 41%**](https://www.amazon.co.uk/dp/B07GDPJVZ8)
**~~View all trending →~~**
## **What buyers say about super king duvet 4.5 tog**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**26%
*“Good quality item arrived when expected”*
**Weight Light**15%
*“Good lightweight quilt”*
**Value For Money**9%
*“Excellent value for money”*
**Warmth**8%
*“Soft and warm”*
**Soft Feel**7%
*“Soft and breathable”*
**Comfort-Overall**7%
*“Very comfortable”*
**Size-Overall**4%
*“Fits perfect”*
**Stitch/Finish/Polish**3%
*“Well stitched”*
**Advertised Vs Actual Product**3%
*“Its just what I needed”*
**Weather Proof**3%
*“Perfect for the summer”*
### **What buyers complain about **
**Quality-Overall**26%
*“Poor quality control”*
**Size-Overall**13%
*“Rubbish sizes”*
**Material Quality**8%
*“papery teabag style material”*
**Stitch/Finish/Polish**7%
*“Stitching issues”*
**Thickness**5%
*“the stuffing is so thin”*
**Cushion**4%
*“the padding is not even so it has lumps all over”*
**Value For Money**4%
*“not worth £19, pretty basic”*
**Advertised Vs Actual Product**3%
*“Not like on the picture, very misleading”*
**Breathability**2%
*“doesn't feel very breathable”*
**Comfort-Overall**2%
*“so it is very uncomfortable”*
### **Top return reasons **
**Size-Overall**32%
**Thin**12%
**Quality-Overall**11%
**Material Quality**10%
**Stitch/Finish/Polish**6%
**Advertised Vs Actual Product**4%
**Thickness**4%
**Weight Light**2%
**Product Condition**2%
**Stain Resistance**2%
## **Common questions**
- **Is super king duvet 4.5 tog profitable to sell on Amazon United Kingdom?**
- The niche generates £102K/yr across 37 tracked products. 1 of 4 products launched in the last 360 days are still selling. 90-day search growth is +185.1%. Flapen's verdict: Worth a look (65/100).
- **How competitive is the super king duvet 4.5 tog niche?**
- 17 brands and 33 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 74% of demand.
- **What do buyers complain about in super king duvet 4.5 tog?**
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Material Quality. The return rate is 0.4%.
- **When does demand for super king duvet 4.5 tog peak?**
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 10.4× the quietest.
- **What does it cost to enter the super king duvet 4.5 tog niche?**
- Listings span £8.54–£45.14; the average listing price is £17.51 (sweet spot $15–$100). The average incumbent carries 8,584 reviews — the moat a new listing must climb.
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