---
title: "Grey Duvet Cover King Size — $5.2M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/grey-duvet-cover-king-size"
last_updated: "2026-08-11T06:49:58.980Z"
locale: en
meta:
description: "Niche score 52/100 · $5.2M/yr market · 9.5M searches/yr · $46.80 avg price. Weak search conversion (1.2%) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · $5.2M/yr market · 9.5M searches/yr · $46.80 avg price. Weak search conversion (1.2%) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Grey Duvet Cover King Size — $5.2M/yr Amazon US Niche (2026) - Flapen"
---
# **grey duvet cover king size**
**Worth a look**
Shows a $5.2M/yr market, but weak search conversion (1.2%) keeps it on the watch list.
Market size 98Growth 19Conversion 15Competition 79Returns 24Price range 70Avg price 94Brand share 43Review moat 22Quality gap 53
**Market size**
**Incredible****$5.2M**
$5.2M/yr · 9.5M searches
**Avg price**
**Great****$46.80**
avg listing price — sweet spot $15–$100
**Competition**
**Great****36%**
top-5 click share — an open shelf
**Price range**
**Good****$14.52–$136.77**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****79%**
top-5 brand share — brands hold most of the demand
**Returns**
**Bad****5.4%**
return rate — above 5% kills the launch gate
**Review moat**
**Bad****8,698.06**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-12.4%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****1.2%**
search→purchase rate — share of searches ending in a sale
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, grey duvet cover king size is a $5.2M/yr Amazon United States market (9.5M searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Jan–Feb. Verdict: Worth a look — 52/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **grey duvet cover king size market data**
- **Units sold / yr**
- **100K–125K**
- avg 2,000–2,500/product
- **Revenue / yr**
- **$4.7M–$5.8M**
- units × avg price
- **Conversion rate**
- **1.2%**
- **Avg BSR**
- **#19**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **96%**
- **Out of stock**
- **3.0%**
- **Avg brand age**
- **51 months**
- **Avg seller age**
- **164 days**
## **Competition & brand share**
Clicks spread well past the top 5 (36% combined) — an open shelf where new products get seen.
**Brands**
**18 **▼falling
**Sellers**
**26**
**Top-5 brand share**
**79%**
Top 20: 100%
**Top-5 click share**
**36%**
Top 20: 74%
**Open market**
**18%**
- Bedsure47% - Utopia Bedding11% - MooMee9% - CGK Unlimited9% - PHF3% - TOCOMOA3% - Open — no brand owns it (12 brands, 18%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -12.4% search growth over the last 90 days.
350K250KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb · busiest ÷ quietest = 2.8×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/grey-duvet-cover-king-size/trend)
## **Top grey duvet cover king size search terms**
- **duvet cover king**2.5M/yr-24.5%0.7% conv. - **king duvet cover**1.8M/yr-13.6%1.1% conv. - **king size duvet cover**794K/yr-18.8%0.9% conv. - **twin duvet cover**604K/yr+0.8%0.9% conv. - **linen duvet cover**422K/yr+11.5%0.2% conv. - **duvet cover king size**528K/yr-23.3%0.6% conv. - **king duvet cover set**446K/yr-20.4%0.5% conv. - **oversized king duvet cover**393K/yr-21.4%0.2% conv. - **cooling duvet cover**178K/yr+31.9%0.1% conv. - **california king duvet cover**326K/yr-22.4%0.2% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/grey-duvet-cover-king-size/search-terms)
## **Top grey duvet cover 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%3%$155K6%$311K9%$466K12%$621K1001K10K100K 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**Bedsure Prewashed Duvet Cover King Cotton-Like Soft Bedding Set Linen**Bedsure**$29.51**4.5★25,178 rev](https://www.amazon.com/dp/B09YM1RD61) [2**Bedsure White Duvet Cover King Size - 3 Pieces Prewashed Cotton-Like Polyester Extra Soft Bedding Set Includes 1 Duvet Cover 104x90 Inches with Zipper Closure & 2 Pillow Shams Comforter Not Included**Bedsure**$27.57**4.5★25,178 rev](https://www.amazon.com/dp/B07PCRFVT3) [3**Utopia Bedding Duvet Cover King Size - 3 Piece with Zipper Closure - 1 Comforter Cover 104X90 Inches & 2 Pillow Shams 20X36 Inches (White) Comforter Not Included**Utopia Bedding**$20.17**4.4★12,658 rev](https://www.amazon.com/dp/B07PQL9NQQ) [4**MooMee Striped Duvet Cover Set 100% Washed Cotton Linen Like King**MooMee**$77.51**4.6★1,745 rev](https://www.amazon.com/dp/B0CRQZNDTD) [5**Duvet Cover King Size - Extra Soft 3 Piece Set with Zipper Closure - White**CGK Unlimited**$24.49**4.4★7,414 rev](https://www.amazon.com/dp/B0CV4HD2PX)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**TOCOMOA Tan Gingham Duvet Cover Bedding Set Washed Cotton Like Linen King**TOCOMOA**$57.42**508 rev1y ago](https://www.amazon.com/dp/B0F6LJ7BJK) [**Utopia Bedding Duvet Cover Set with Pillowcases - 1 Duvet Cover with 2 Pillowcases - 20 X 36-3 Pieces Bedding Duvet Cover with Zipper Closure - Soft Brushed Microfiber (King White)**Utopia Bedding**$17.90**50,742 rev1y ago](https://www.amazon.com/dp/B0DWK27HCB) [**Duvet Cover King Size - Extra Soft 3 Piece Set with Zipper Closure - White**CGK Unlimited**$24.49**7,414 rev2y ago](https://www.amazon.com/dp/B0CV4HD2PX) [**Duvet Cover Twin/Twin XL Size - 2 Piece Set with Zipper Closure - White**CGK Unlimited**$16.76**7,414 rev2y ago](https://www.amazon.com/dp/B0CV4KGTKD) [**MooMee Striped Duvet Cover Set 100% Washed Cotton Linen Like King**MooMee**$77.51**1,745 rev2y ago](https://www.amazon.com/dp/B0CRQZNDTD)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Utopia Bedding Duvet Cover Set with Pillowcases - 1 Duvet Cover with 2 Pillowcases - 20 X 36-3 Pieces Bedding Duvet Cover with Zipper Closure - Soft Brushed Microfiber (King White)**Utopia Bedding**$17.90**4.4★**▲ 142%**](https://www.amazon.com/dp/B0DWK27HCB) [**Simple&Opulence 100% French Flax Linen Duvet Cover Set with Embroidery Washed - 3 Pieces (1 Duvet Cover with 2 Pillow Shams) with Button Closure Soft Breathable Farmhouse - Linen King Size**Simple&Opulence**$136.77**4.5★**▲ 71%**](https://www.amazon.com/dp/B01L8BZIMO) [**Bedsure Prewashed Duvet Cover Queen Cotton-Like Soft Bedding Set Linen**Bedsure**$26.46**4.5★**▲ 59%**](https://www.amazon.com/dp/B09YM372LR) [**Bedsure Duvet Cover King Size - Reversible Floral Duvet Cover Set with Zipper Closure 3 Pieces Grey Bedding Set with 8 Corner Ties and 2 Pillowcases 20x36**Bedsure**$29.73**4.5★**▲ 50%**](https://www.amazon.com/dp/B09MVZP943) [**Bedsure Prewashed Duvet Cover King Cotton-Like Bedding Set Olive Green**Bedsure**$30.84**4.5★**▲ 39%**](https://www.amazon.com/dp/B089SMXB5Q)
**~~View all trending →~~**
## **What buyers say about grey duvet cover king size**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Soft Feel**24%
*“Very soft material”*
**Quality-Overall**13%
*“Good quality bedding”*
**Color**9%
*“The color choice is perfect”*
**Comfort-Overall**9%
*“Nice and comfortable”*
**Value For Money**6%
*“Good value for money”*
**Size-Overall**5%
*“Great fit”*
**Upholstery/Fabric Quality**3%
*“great quality fabric”*
**Material Quality**3%
*“its lightweight material”*
**Advertised Vs Actual Product**2%
*“As advertised”*
**Warmth**2%
*“Keeps me warm”*
### **What buyers complain about **
**Quality-Overall**10%
*“Poor quality control”*
**Size-Overall**10%
*“Too short”*
**Color**6%
*“The color is slightly darker than what I expected”*
**Durability**5%
*“has already ripped”*
**Hard Feel**5%
*“Material is rough”*
**Thickness**5%
*“but THICK”*
**Pilling/Linting**4%
*“Fabric pilling after a couple of months”*
**Material Quality**4%
*“cheap material”*
**Advertised Vs Actual Product**3%
*“looks nothing like the picture”*
**Washability**2%
*“It broke after less than 10 washes”*
### **Top return reasons **
**Color**35%
**Size-Overall**21%
**Material Quality**12%
**Advertised Vs Actual Product**6%
**Display Colors**3%
**Thin**3%
**Quality-Overall**3%
**Value For Money**3%
**Comfort-Overall**2%
**Stain Resistance**1%
## **Common questions**
- **Is grey duvet cover king size profitable to sell on Amazon United States?**
- The niche generates $5.2M/yr across 49 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -12.4%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the grey duvet cover king size niche?**
- 18 brands and 26 sellers compete. The top 5 products take 36% of clicks and top 5 brands hold 79% of demand.
- **What do buyers complain about in grey duvet cover king size?**
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Color. The return rate is 5.4% — above our launch gate.
- **When does demand for grey duvet cover king size peak?**
- Demand peaks in Jan–Feb; the busiest month runs 2.8× the quietest.
- **What does it cost to enter the grey duvet cover king size niche?**
- Listings span $14.52–$136.77; the average listing price is $46.80 (sweet spot $15–$100). The average incumbent carries 8,698 reviews — the moat a new listing must climb.
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