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37

sereni calming vest

Skip it

A small market ($30K/yr) — this niche doesn't clear our bar today.

Market size 8Growth 15Conversion 20Competition 37Returns 23Price range 95Avg price 90Brand share 21Review moat 90Quality gap 76

Price range

Incredible$28.76–$95.86

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

Review moat

Great205.45

avg incumbent reviews — the moat a new listing must climb

Avg price

Great$59.60

avg listing price — sweet spot $15–$100

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Competition

Okay63%

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

Returns

Bad5.6%

return rate — above 5% kills the launch gate

Brand share

Bad91%

top-5 brand share — brand-locked demand

Conversion

Bad1.6%

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

Growth

Bad-20.9%

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

Market size

Bad$30K

$30K/yr · 32K searches

According to Flapen's Amazon United States niche tracking, sereni calming vest is a $30K/yr Amazon United States market (32K searches/yr). The top 5 brands hold 91% of demand. Verdict: Skip it — 37/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

sereni calming vest market data

Units sold / yr
250–500
avg 0–100/product
Revenue / yr
$15K–$30K
units × avg price
Conversion rate
1.6%
Avg BSR
#158
Page quality
0%
Prime
100%
Sponsored
100%
Out of stock
1.2%
Avg brand age
19 months
Avg seller age
209 days

Competition & brand share

The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.

Brands

10 falling

Sellers

12

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

63%

Top 20: 100%

Open market

6%

  • Sereni78%
  • iigala6%
  • Generic3%
  • TED KANGAROO3%
  • Kdarro2%
  • WENHULIOPTY2%
  • Open — no brand owns it (4 brands, 6%)

Demand

Weekly Amazon search volume, last 44 weeks — -20.9% search growth over the last 90 days.
1K800Spike '25Spike '26Prime Day '26Sep '25Nov '25Dec '25Feb '26Mar '26May '26

Top sereni calming vest search terms

  • sereni calming vest19K/yr
  • calming vest7K/yr
  • sereni calming vest for kids6K/yr
All search terms

Top sereni calming vest 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%10%$3K20%$6K30%$9K40%$12K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 20 tracked products in this niche — three views at once, no toggling.

What buyers say about sereni calming vest

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

What buyers love

Quality-Overall24%

“It feels well made”

Size-Overall17%

“Great fit”

Soothing Effect7%

“Calming vest, works amazingly for AuDHD toddler”

Weight Light5%

“Great weighted vest for autism”

Soft Feel5%

“The fabric is soft and comfortable and my son didnt mind it so thats a plus”

Advertised Vs Actual Product4%

“Should work as advertised”

Smell4%

“Didnt smell weird at all”

Ease Of Use3%

“things might have been easier for him”

Comfort-Overall3%

“seems very comfortable”

Focus Enhancement3%

“Helped my son to stay focus”

What buyers complain about

Size-Overall14%

“Obviously, in the first place, its not sized for us”

Adjustability/Rotatability/Reclining12%

“The weights aren't adjustable”

Smell8%

“Really harsh smells, I would try and buy local”

Weight Light5%

“Its too lightweight”

Functionality-Overall5%

“it doesn't work”

Advertised Vs Actual Product5%

“Product is not advertised accurately”

Value For Money4%

“the only drawback is for the price-point I was very disappointed to learn there is no way to ADD additional weight to the vest as the child grows or therapist deem fit”

Hard Feel4%

“He still has some hard moments”

Sleep Quality3%

“Mornings in our house used to be a nightmare”

Weight Heavy3%

“Slightly too heavy for my son because he is so little”

Top return reasons

Size-Overall66%
Weight Heavy6%
Functionality-Overall4%
Advertised Vs Actual Product4%
Smell3%
Comfort-Overall3%
Zipper Quality2%
Quality-Overall1%
Weight Light1%
Compression1%

Common questions

Is sereni calming vest profitable to sell on Amazon United States?
The niche generates $30K/yr across 20 tracked products. 1 of 14 products launched in the last 360 days are still selling. 90-day search growth is -20.9%. Flapen's verdict: Skip it (37/100).
How competitive is the sereni calming vest niche?
10 brands and 12 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 91% of demand.
What do buyers complain about in sereni calming vest?
Top complaints mined from reviews: Size-Overall, Adjustability/Rotatability/Reclining, Smell. The return rate is 5.6% — above our launch gate.
What does it cost to enter the sereni calming vest niche?
Listings span $28.76–$95.86; the average listing price is $59.60 (sweet spot $15–$100). The average incumbent carries 205 reviews — the moat a new listing must climb.