down comforter king size
Worth a lookShows a $4.0M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size
Incredible$4.0M$4.0M/yr · 2.2M searches
Avg price
Great$65.23avg listing price — sweet spot $15–$100
Competition
Great32%top-5 click share — an open shelf
Brand share
Good62%top-5 brand share — brands hold most of the demand
Returns
Okay3.3%return rate — above 5% kills the launch gate
Price range
Okay$20.16–$192.88cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Conversion
Okay2.8%search→purchase rate — share of searches ending in a sale
Review moat
Bad16,018.53avg incumbent reviews — the moat a new listing must climb
Growth
Bad-17.6%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, down comforter king size is a $4.0M/yr Amazon United States market (2.2M searches/yr). The top 5 brands hold 62% of demand. Demand peaks in Jan–Nov–Dec. Verdict: Worth a look — 56/100.
Data updated Jul 18, 2026 · scored weekly · How we score niches
down comforter king size market data
- Units sold / yr
- 60K–80K
- avg 1,250–1,500/product
- Revenue / yr
- $3.9M–$5.2M
- units × avg price
- Conversion rate
- 2.8%
- Avg BSR
- #49
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 96%
- Out of stock
- 1.5%
- Avg brand age
- 48 months
- Avg seller age
- 169 days
Competition & brand share
Clicks spread well past the top 5 (32% combined) — an open shelf where new products get seen.Brands
32 rising
Sellers
44
Top-5 brand share
62%
Top 20: 91%
Top-5 click share
32%
Top 20: 68%
Open market
34%
- Bedsure28%
- Utopia Bedding17%
- L LOVSOUL8%
- EGYPTIAN BEDDING5%
- CozyLux4%
- Amazon Basics4%
Demand & seasonality
Weekly Amazon search volume, last 100 weeks — -17.6% search growth over the last 90 days.Peak months: Jan, Nov, Dec · busiest ÷ quietest = 2.4×
Top down comforter king size search terms
- down comforter king size667K/yr
- king duvet230K/yr
- white comforter king206K/yr
- king size duvet147K/yr
- king down comforter155K/yr
- duvet king119K/yr
- white king comforter103K/yr
- white king comforter set90K/yr
- king size down comforter109K/yr
- duvet king size71K/yr
Top down comforter 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Utopia Bedding King Comforter Duvet Insert Quilted White Comforter with Corner Tabs Box Stitched Down Alternative Comforters King Size 90 x 102 inches
Utopia Bedding$36.374.6★155,570 rev

Bedsure Comforter Duvet Insert - Quilted Comforters King Size All Season Duvet GentleSoft Down Alternative Bedding Blanket with 8 Tabs Gifts for Women/Men White King 90 x 102 Inches
Bedsure$47.994.7★76,669 rev

Bedsure King Comforter Set White Soft Prewashed Bedding for All Seasons 3 Pieces GentleSoft Bed Set 1 Lightweight Comforter (104x90) and 2 Pillowcases (20x36)
Bedsure$36.404.4★9,430 rev

Utopia Bedding White Comforter King Size Duvet Insert Down Alternative Comforter
Utopia Bedding$30.524.6★126,601 rev

Luxurious King/California King Size Goose Down Fiber Waterfowl Feather Fiber Comforter Duvet 100% Cotton Cover 58 oz. Fill Weight Baffle Box Design White Solid
EGYPTIAN BEDDING$154.124.4★9,674 rev
Newest
by launch date
Martha Stewart Luxury White Goose Feathers Down Fiber Duvet Insert King Size - Hotel Collection 100% Cotton Cover Comforter All Season Medium Warmth Breathable Hypoallergenic 106 x 90 Inch
Martha Stewart$78.2847 rev

Bedsure King Size Comforter Set White Soft Prewashed King Bedding Quilted Comforter with Clover Design Down Alternative Comforter for All Seasons 3 Pieces Bed Set with 2 Pillow Shams
Bedsure$34.30288 rev

Bedsure Feather Down Comforter King Size Luxurious Fluffy Hotel Duvet Insert with Storage Bag & 8 Corner Tabs PureWoven Ultra Soft Cotton Blend Fabric All Season Comforter 106x90 Inches White
Bedsure$192.88114 rev

Down Comforter King Size All Season Medium Weight Fluffy White Duvet Insert Warm Feather Bedding Soft 100% Cotton Cover 90x106 Inch
Vexino$54.41594 rev

L LOVSOUL Goose Feather Down Fiber Comforter King Size 100% Organic Cotton Fabric Duvet Insert 1200TC 750+Fill Power Hotel Collection All Season Grey Bedding Comforters with 8 Tabs
L LOVSOUL$94.242,790 rev
Trending
90-day click momentum
Down Comforter King Size All Season Medium Weight Fluffy White Duvet Insert Warm Feather Bedding Soft 100% Cotton Cover 90x106 Inch
Vexino$54.414.5★

Martha Stewart Luxury White Goose Feathers Down Fiber Duvet Insert King Size - Hotel Collection 100% Cotton Cover Comforter All Season Medium Warmth Breathable Hypoallergenic 106 x 90 Inch
Martha Stewart$78.284.6★

Bedsure King Size Comforter Set White Soft Prewashed King Bedding Quilted Comforter with Clover Design Down Alternative Comforter for All Seasons 3 Pieces Bed Set with 2 Pillow Shams
Bedsure$34.304.5★

Hotel Grand Luxury White Goose Feather Down Fiber Comforter King Size 100% Cotton All Season Duvet Insert King Fluffy Medium Warmth Bedding Comforter with 8 Corner Loops White 106x90 Inch
Hotel Grand$71.354.6★

Bedsure Comforter Duvet Insert - Quilted Comforters Oversized King Size All Season Duvet GentleSoft Down Alternative Bedding with 8 Tabs Gifts for Women/Men White Oversized King 116 x 98 Inches
Bedsure$75.644.7★
What buyers say about down comforter king size
What buyers praise and complain about, mined from review topics.What buyers love
“Love the comfort”
“Soft and fluffy”
“Keeps you very warm”
“Amazing Quality”
“Very affordable”
“Lightweight and comfortable”
“Perfect Fit”
“Soft and fluffy”
“A great neutral color”
“As advertised”
What buyers complain about
“Very large”
“Cheap quality”
“Not thick as advertised”
“its definitely NOT fluffy”
“False advertising”
“Cheap material”
“Not as comfy as I was hoping for”
“not breathable and very hot”
“It also doesn't wash well”
“this smell is rancid”
Top return reasons
Common questions
- Is down comforter king size profitable to sell on Amazon United States?
- The niche generates $4.0M/yr across 57 tracked products. 10 of 12 products launched in the last 360 days are still selling. 90-day search growth is -17.6%. Flapen's verdict: Worth a look (56/100).
- How competitive is the down comforter king size niche?
- 32 brands and 44 sellers compete. The top 5 products take 32% of clicks and top 5 brands hold 62% of demand.
- What do buyers complain about in down comforter king size?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Thickness. The return rate is 3.3%.
- When does demand for down comforter king size peak?
- Demand peaks in Jan–Nov–Dec; the busiest month runs 2.4× the quietest.
- What does it cost to enter the down comforter king size niche?
- Listings span $20.16–$192.88; the average listing price is $65.23 (sweet spot $15–$100). The average incumbent carries 16,019 reviews — the moat a new listing must climb.