Long Sleeve Onesies
FailBuyers convert on only 0.8% of searches, so Long Sleeve Onesies is a Fail.
- Flapen Score
- 41 / 100Ranks 11,351 of 16,930 Clothing, Shoes & Jewelry niches · −4 vs the category median of 4541
- Market size
- $110K/yr629K searches / yr
- 90-day growth
- -9.4%search demand this quarter
- Competition
- 28%top-5 click share · 15 brands · 19 sellers
Flapen Score
Long Sleeve Onesies against its category
The dotted line is the Clothing, Shoes & Jewelry average. Past it, Long Sleeve Onesies is stronger. Inside it, weaker.
Market
The Long Sleeve Onesies market on Amazon at a glance
Shoppers on Amazon United States searched for Long Sleeve Onesies 629K times last year and spent an estimated $110K. The top 5 brands take 89% of clicks. Flapen scores it 41 out of 100, a Fail.
01 · Demand
An estimated 0.8% of those searches ended in a purchase.
Shoppers searched for this 629K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 0.8% of those searches ended in a purchase. Searches in the last 90 days moved -9.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $110K a year.
- Searches, last 12 months
- 629K
- Growth, 90 days vs prior 90
- -9.4%
- Conversion, latest week
- 0.8%
- Market size, estimated
- $110Ka year
- Top search term
- long sleeve onesies120K searches a year
02 · Price
A sale here is worth $21.08.
Listings sell for $21.08 on average, from $9.19 to $55.99. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 0 to 100 of them. At $21.08 that is $0 to $2K a year per listing.
- Average price
- $21.08inside the $15 to $100 sweet spot
- Price range
- $9.19–$55.99
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 5K–6K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$2K
- Returns
- 2.5%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
89% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 6.3% of listings are out of stock. The average listing ranks #158 within Baby Boys. It carries 13,060 reviews at 4.75 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 89%
- Prime listings
- 100%
- Out of stock, average day
- 6.3%
- Average rank
- #158in Baby Boys
- Average rating
- 4.75 starsAmazon United States average 4.42 stars
- Average reviews
- 13,060per listing
- Listings tracked
- 80
04 · Newcomers
25 of last year's 47 launches cleared the first-year sales bar.
47 products launched here in the last 12 months. 25 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 38 months on average, so the names here are settling in.
- Launched, last 12 months
- 47
- Successful launches
- 25Amazon's first-year sales bar
- Average brand age
- 38 months
Products
Top Long Sleeve Onesies products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 8, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Gerber Unisex Baby 6 Pack Long-sleeve Onesies Bodysuit And Toddler T-Shirt Set 6-pack White 6-9 Months US
- Price
- $16.83
- Rating
- 4.8/5
- Reviews
- 8,604
- Age
- 7y ago

Gerber Baby Girls 3-Pack Or 6-Pack Long-Sleeve Mitten-Cuff Onesies Infant and Toddler Bodysuits White 6 Pack Newborn US
- Price
- $18.38
- Rating
- 4.8/5
- Reviews
- 13,840
- Age
- 7y ago

Simple Joys by Carters unisex-baby 4-Pack Long-Sleeve Thermal Bodysuits Beige/Dark Grey/Grey/Ivory 3-6 Months
- Price
- $14.38
- Rating
- 4.9/5
- Reviews
- 9,311
- Age
- 2mo ago

Gerber Unisex Baby 6 Pack Long-sleeve Onesies Bodysuit And Toddler T-Shirt Set 6-pack White 24 Months US
- Price
- $16.55
- Rating
- 4.8/5
- Reviews
- 8,604
- Age
- 7y ago

Gerber Unisex Baby 6 Pack Long-sleeve Onesies Bodysuit And Toddler T-Shirt Set 6-pack White 3-6 Months US
- Price
- $16.72
- Rating
- 4.8/5
- Reviews
- 8,604
- Age
- 7y ago
Trending
estimated 90-day click momentum
Amazon Essentials x Sofia Grainge Unisex Babies Long Sleeve Crew Neck Bodysuit Pack of 3 Ivory/Light Camel/Stripe 3-6 Months
- Price
- $12.16
- Rating
- 4.7/5
- Reviews
- 466
- Age
- 9mo ago

Amazon Essentials x Sofia Grainge Unisex Babies Long Sleeve Crew Neck Bodysuit Pack of 3 Ivory/Light Camel/Stripe 18 Months
- Price
- $13.60
- Rating
- 4.7/5
- Reviews
- 466
- Age
- 9mo ago

Butterblu Ashley 5-Pack Long Sleeve Ruffle Shoulder Bodysuits 100% Organic for Baby Girls Sunset 0-3 Months
- Price
- $33.21
- Rating
- 4.8/5
- Reviews
- 96
- Age
- 10mo ago

Amazon Essentials x Sofia Grainge Unisex Babies Long Sleeve Crew Neck Bodysuit Pack of 3 Ivory/Light Camel/Stripe 6-9 Months
- Price
- $11.98
- Rating
- 4.7/5
- Reviews
- 466
- Age
- 9mo ago

Simple Joys by Carters unisex-baby 4-Pack Long-Sleeve Thermal Bodysuits Beige/Dark Grey/Grey/Ivory 0-3 Months
- Price
- $14.51
- Rating
- 4.9/5
- Reviews
- 9,311
- Age
- 2mo ago
Newest
by launch date
Simple Joys by Carters unisex-baby 4-Pack Long-Sleeve Thermal Bodysuits Beige/Dark Grey/Grey/Ivory 3-6 Months
- Price
- $14.38
- Rating
- 4.9/5
- Reviews
- 9,311
- Age
- 2mo ago

Simple Joys by Carters Baby 4-Pack Long-Sleeve Thermal Bodysuits
- Price
- $14.52
- Rating
- 4.9/5
- Reviews
- 9,311
- Age
- 2mo ago

Simple Joys by Carters Baby Boys 5-Pack Long-Sleeve Bodysuit Shirt bears/animals green/stripes Newborn
- Price
- $17.12
- Rating
- 4.8/5
- Reviews
- 39,809
- Age
- 2mo ago

Simple Joys Kids 7 pack long sleeve original bodysuits Shirt White Newborn
- Price
- $17.46
- Rating
- 4.8/5
- Reviews
- 15,491
- Age
- 2mo ago

Simple Joys Baby Girls 5 pack long sleeve original bodysuit Shirt Pink/Navy/Mint 3-6 Months
- Price
- $16.73
- Rating
- 4.8/5
- Reviews
- 44,363
- Age
- 2mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 28% of clicks, no more. An open shelf where new products get seen.
Brands
15 rising
Sellers
19
Est. top-5 brand share
89%
Top 20: 100%
Est. top-5 click share
28%
Top 20: 57%
Open market
9%
- Gerber39%
- Simple Joys by Carter's29%
- Amazon Essentials10%
- Butterblu9%
- little planet by carter's2%
- Carter's2%
- Open — no brand owns it (9 brands, 9%)
Demand
Long Sleeve Onesies search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Oct, Nov · busiest ÷ quietest = 2.9× · 10 of 12 months tracked
Search terms
Top Long Sleeve Onesies search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- long sleeve onesies120K/yr
- baby long sleeve onesies108K/yr
- long sleeve baby onesies53K/yr
- newborn long sleeve onesies21K/yr
- long sleeve bodysuit baby39K/yr
- long sleeve onesie43K/yr
- carters long sleeve onesies27K/yr
- baby onesies long sleeve37K/yr
- newborn onesies long sleeve24K/yr
- gerber long sleeve onesies16K/yr
Reviews and returns
What reviews say buyers love and hate about Long Sleeve Onesies
We read the reviews and the return reasons for every product selling here.
“Too small”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
20 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Long Sleeve Onesies questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









