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Onesies

Maybe

The top 5 products take only 16% of clicks. But buyers convert on only 0.7% of searches, so Onesies is a Maybe.

Flapen Score
54
54 / 100
Top 17% of 16,930 Clothing, Shoes & Jewelry niches · +9 vs the category median of 45
Market size
$961K/yr6.0M searches / yr
90-day growth
-8.0%search demand this quarter
Competition
16%top-5 click share · 42 brands · 56 sellers

Flapen Score

Onesies against its category

The dotted line is the Clothing, Shoes & Jewelry average. Past it, Onesies is stronger. Inside it, weaker.

54Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Onesies market on Amazon at a glance

Shoppers on Amazon United States searched for Onesies 6.0M times last year and spent an estimated $961K. The top 5 brands take 67% of clicks. Demand peaks in Jan–Feb–Nov–Dec. Flapen scores it 54 out of 100, a Maybe.

01 · Demand

0.7% of searches ended in a purchase last week.

Shoppers searched for this 6.0M times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 0.7% of those searches ended in a purchase. Searches in the last 90 days moved -8.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated $961K a year.

Searches, last 12 months
6.0M
Growth, 90 days vs prior 90
-8.0%
Conversion, latest week
0.7%
Market size, estimated
$961Ka year
Peak month
January2.0× the quietest month
Top search term
newborn onesies893K searches a year

02 · Price

A sale here is worth $21.93.

Listings sell for $21.93 on average, from $8.01 to $74.85. Amazon reports units sold in ranges. This niche sold 50K to 60K a year. The average listing sells 250 to 500 of them. At $21.93 that is $5K to $11K a year per listing.

Average price
$21.93inside the $15 to $100 sweet spot
Price range
$8.01–$74.85
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
50K–60K
Units per listing a year
250–500
Revenue per listing a year
$5K–$11K
Returns
2.5%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is ads and reviews.

95% of listings pay for placement with sponsored ads. 99% ship with Prime. On an average day, 1.8% of listings are out of stock. The average listing ranks #35 within Baby Boys. It carries 18,049 reviews at 4.72 stars, so a new listing needs social proof before a better product.

Sponsored listings
95%
Prime listings
99%
Out of stock, average day
1.8%
Average rank
#35in Baby Boys
Average rating
4.72 starsAmazon United States average 4.42 stars
Average reviews
18,049per listing
Listings tracked
151

04 · Newcomers

Amazon counts 46 of last year's 54 launches as successful.

54 products launched here in the last 12 months. Amazon counts 46 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 40 months on average, so the names here are settling in.

Launched, last 12 months
54
Successful launches
46Amazon's first-year sales bar
Average brand age
40 months

Products

Top Onesies products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take only 16% of clicks. An open shelf where new products get seen.

$0$19K$38K$58K$77K101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

42 falling

Sellers

56

Top-5 brand share

67%

Top 20: 90%

Top-5 click share

16%

Top 20: 39%

Open market

30%

  • Gerber36%
  • Yoofoss11%
  • Simple Joys by Carter's9%
  • Bibimom6%
  • Burt's Bees Baby4%
  • Amazon Essentials4%

Demand

Onesies search demand

Weekly searches over the year, seasonality beneath. Pick a range.

150K100KPrime Day '24Spike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Nov, Dec · busiest ÷ quietest = 2.0×

Search terms

Top Onesies search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • newborn onesies893K/yr
  • gender neutral baby clothes914K/yr
  • onesies652K/yr
  • newborn sleepers419K/yr
  • baby boy onesies365K/yr
  • baby pajamas407K/yr
  • onesies 3-6 months275K/yr
  • baby boy sleepers249K/yr
  • neutral baby clothes251K/yr
  • baby clothes unisex267K/yr

Reviews and returns

What reviews say buyers love and hate about Onesies

What buyers praise, what they complain about and why they send it back, from the reviews.

Complain

Size-Overall26%−0.04

Fits large

Runs very small

Too short

Quality-Overall7%+0.53

Not well made

very disappointed in the quality control

Poor quality

Material Quality5%−0.01

Cheap material

The material is also poorer quality

material is not soft

Zipper Quality4%−0.01

Cheap zipper

Broken zipper

Broken Zipper after 3-4ish months

Thickness3%

its pretty thick

Also, the original Gerber material is thick

Also, thinner than I thought,

Love

Soft Feel20%

Material is soft

Butter soft

Incredibly soft

Quality-Overall14%+0.53

the product is beautiful

Quality & colors are cute

Amazing quality

Size-Overall11%−0.04

The sizing is accurate

Fits as expected

Fits great

Comfort-Overall6%+0.61

Its very convenient

Looks good and comfortable for night sleeps

super comfortable for my baby

Color5%+0.22

the color is accurate

Nice neutral colors

Beautiful colors

Return

2.5% Return rate 72% Fixable by listing

Size-Overall57%█▇▇███

Fits large

Runs very small

Too short

Length7%██▆▇▇▇
Material Quality5%█▇▇▇▇▇

Cheap material

The material is also poorer quality

material is not soft

Advertised Vs Actual Product3%▅▅█▅▅▅

Wrong description

False advertising

Not as advertised

Value For Money3%▂▆▆█▇█

FAQ

Common Onesies questions

Answered from the same tracked data.