Is kotatsu profitable to sell on Amazon United States?

The niche generates $137K/yr across 45 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is -35.9%. Flapen's verdict: Skip it (33/100).

How competitive is the kotatsu niche?

18 brands and 36 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 80% of demand.

What do buyers complain about in kotatsu?

Top complaints mined from reviews: Size-Overall, Quality-Overall, Value For Money. The return rate is 5.3% — above our launch gate.

When does demand for kotatsu peak?

Demand peaks in Jan–Nov–Dec; the busiest month runs 3.7× the quietest.

What does it cost to enter the kotatsu niche?

Listings span $53.20–$682.91; the average listing price is $289.89 (sweet spot $15–$100). The average incumbent carries 163 reviews — the moat a new listing must climb.

kotatsu

Skip it

Weak search conversion (0.1%) — this niche doesn't clear our bar today.

Review moat

Great162.64

avg incumbent reviews — the moat a new listing must climb

Competition

Good40%

top-5 click share — leaders hold, buyers still browse

Brand share

Okay80%

top-5 brand share — brands hold most of the demand

Avg price

Okay$289.89

avg listing price — sweet spot $15–$100

Market size

Okay$137K

$137K/yr · 393K searches

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Returns

Bad5.3%

return rate — above 5% kills the launch gate

Growth

Bad-35.9%

90-day search growth — must beat 0% to launch

Price range

Bad$53.20–$682.91

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Bad0.1%

search→purchase rate — share of searches ending in a sale

Signals High Returns High Price

According to Flapen's Amazon United States niche tracking, kotatsu is a $137K/yr Amazon United States market (393K searches/yr). The top 5 brands hold 80% of demand. Demand peaks in Jan–Nov–Dec. Verdict: Skip it — 33/100.

Data updated Jul 18, 2026 · scored weekly · How we score niches

kotatsu market data

Units sold / yr: 500–750; avg 0–100/product
Revenue / yr: $145K–$217K; units × avg price
Conversion rate: 0.1%
Avg BSR: #2,830
Page quality: 0%
Prime: 76%
Sponsored: 44%
Out of stock: 10.4%
Avg brand age: 28 months
Avg seller age: 179 days

Competition & brand share

The top 5 products take 40% of clicks — established leaders, but buyers still shop beyond them.

Brands

18 rising

Sellers

Top-5 brand share

80%

Top 20: 100%

Top-5 click share

40%

Top 20: 77%

Open market

16%

AZUMAYA22%
FULI16%
KEN JAPAN15%
BJDesign14%
パレットライフ13%
YAMAZEN3%
Open — no brand owns it (12 brands, 16%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -35.9% search growth over the last 90 days.

Peak months: Jan, Nov, Dec · busiest ÷ quietest = 3.7×

Open Trend

Top kotatsu search terms

kotatsu table155K/yr -32.6%0.1% conv.
kotatsu177K/yr -41.8%0.1% conv.
kotatsu table with heater and blanket13K/yr +26.1%0.1% conv.
azumaya10K/yr -16.9%0.1% conv.
kotatsu table with heater15K/yr -66.4%0.2% conv.
japanese kotatsu table6K/yr -35.4%0.0% conv.
japanese heated table6K/yr -54.9%0.3% conv.
kotatsu table set7K/yr -54.8%0.0% conv.
heated table4K/yr -48.9%0.0% conv.

All search terms

Top kotatsu 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

FULI Japanese Kotatsu Blanket Warm Quilted Kotatsu Futon Comforter 100% Cotton Top Made in Japan 81x96 in / 205x245 cm Rectangle (Black)

FULI$327.705.0★13 rev

KEN JAPAN KB-75US(BK) Kotatsu Heater Table with 120V Electric Heater Low-Lying Dining and Work Desk Square W29.5xD29.5xH15inches Table top Surface Reversible Gray Brown Color Home and Living

KEN JAPAN$247.034.6★71 rev

AZUMAYA KT-107 Kotatsu Heater Table W30 x D30 x H15 Inches Natural Walnut and Rubber Wood Table Material Home and Living Square Shape Table Top with Walnut Brown Color

AZUMAYA$304.814.6★120 rev

AZUMAYA Folding Legs Kotatsu Heater Table W36xD20xH14.5 Inches Natural Wooden Material Walnut Brown Color Electric AC110/120-Voltage 400-Watt for USA and Canada Home Living Protoya OEM ELFI120WAL

AZUMAYA$313.144.9★35 rev

KEN JAPAN US-KLY Kotatsu Heater Table Low-Lying Dining and Work Desk(Square W29.5 xD29.5 xH15.4 Inchies NA)

KEN JAPAN$251.684.5★41 rev

Newest

by launch date

ROOM ESSENCE Walnut Kotatsu Table with Carbon Flat Heater Rectangular Table Top W41.3 x D29.5 x H14.97 inches KT-303

ROOM ESSENCE$333.136 rev

7mo ago

Pubstbos Kotatsu Heating Table Set 80/120cm Japanese-Style Stove Futon Set Kotatsu Heating Table 4-piece Set for Living Room in Winter Living Room Square Kotatsu Table (Brown-A 80 * 120 * 40cm)

Pubstbos$627.890 rev

8mo ago

Kotatsu Futon Inner and Cover Seigaiha Pattern Red for Square kotatsu Natural Cotton Filling Handmade

FutonTokyo$189.770 rev

10mo ago

Palette Life Kotatsu Futon Blanket (Cover Only) 3D Pattern Jacquard Boa 74.8 x 94.5 inches (190 x 240 cm) Rectangle Ivory

パレットライフ$126.6713 rev

1y ago

Palette Life Kotatsu Futon Blanket (Cover Only) 3D Pattern Jacquard Boa 74.8 x 94.5 inches (190 x 240 cm) Rectangular Caramel

パレットライフ$134.9513 rev

1y ago

What buyers say about kotatsu

What buyers praise and complain about, mined from review topics.

What buyers love

Strength18%

“sturdy”

Size-Overall15%

“right size and height”

Quality-Overall13%

“Good quality”

Ease Of Cleaning10%

“Easy to store and clean”

Assembly/Installation8%

“Easy to assemble”

Advertised Vs Actual Product8%

“Just as described”

Value For Money5%

“worth it”

Comfort-Overall3%

“comfortable”

Weight Light3%

“It is extremely lightweight”

Thickness3%

“It's thick with actual substance to it, like fold it on itself and it makes a reasonable sitting cushion, it's substantial”

What buyers complain about

Size-Overall25%

“Its definitely works the only issues is getting a size appropriate for a blanket for the kotatsu”

Quality-Overall25%

“Not very good quality”

Value For Money13%

“Its pricey - at least $50 more than other units Ive seen -”

Scratch Resistance13%

“a scratched/torn corner”

Top return reasons

Size-Overall37%

Advertised Vs Actual Product16%

Color9%

Defective Material/Parts7%

Material Quality4%

Product Condition4%

Quality-Overall3%

Thickness2%

Value For Money2%

Functionality-Overall2%

Common questions

Is kotatsu profitable to sell on Amazon United States?: The niche generates $137K/yr across 45 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is -35.9%. Flapen's verdict: Skip it (33/100).
How competitive is the kotatsu niche?: 18 brands and 36 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 80% of demand.
What do buyers complain about in kotatsu?: Top complaints mined from reviews: Size-Overall, Quality-Overall, Value For Money. The return rate is 5.3% — above our launch gate.
When does demand for kotatsu peak?: Demand peaks in Jan–Nov–Dec; the busiest month runs 3.7× the quietest.
What does it cost to enter the kotatsu niche?: Listings span $53.20–$682.91; the average listing price is $289.89 (sweet spot $15–$100). The average incumbent carries 163 reviews — the moat a new listing must climb.