18 Month Long Sleeve Onesies Boy
FailShoppers spend an estimated $0 a year here, so 18 Month Long Sleeve Onesies Boy is a Fail.
- Flapen Score
- 27 / 100Ranks 16,290 of 16,930 Clothing, Shoes & Jewelry niches · −18 vs the category median of 4527
- Market size
- $0/yr14K searches / yr
- 90-day growth
- -81.4%search demand this quarter
- Competition
- 47%top-5 click share · 5 brands · 5 sellers
Flapen Score
18 Month Long Sleeve Onesies Boy against its category
The dotted line is the Clothing, Shoes & Jewelry average. Past it, 18 Month Long Sleeve Onesies Boy is stronger. Inside it, weaker.
Market
The 18 Month Long Sleeve Onesies Boy market on Amazon at a glance
Shoppers on Amazon United States searched for 18 Month Long Sleeve Onesies Boy 14K times last year and spent an estimated $0. All 5 brands take every click. Demand peaks in Jan–Oct–Nov–Dec. Flapen scores it 27 out of 100, a Fail.
01 · Demand
An estimated 0.0% of those searches ended in a purchase.
Shoppers searched for this 14K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 0.0% of those searches ended in a purchase. Searches in the last 90 days moved -81.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $0 a year.
- Searches, last 12 months
- 14K
- Growth, 90 days vs prior 90
- -81.4%
- Conversion, latest week
- 0.0%
- Market size, estimated
- $0a year
- Peak month
- October15.3× the quietest month
- Top search term
- long sleeve onesies 12-18 months1K searches a year
02 · Price
A sale here is worth $18.05.
Listings sell for $18.05 on average, from $13.84 to $30.87. Amazon reports units sold in ranges. This niche sold 500 to 750 a year. The average listing sells 0 to 100 of them. At $18.05 that is $0 to $2K a year per listing.
- Average price
- $18.05inside the $15 to $100 sweet spot
- Price range
- $13.84–$30.87
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 500–750
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$2K
- Returns
- 2.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
93% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 22.3% of listings are out of stock. The average listing ranks #85 within Baby Boys. It carries 17,869 reviews at 4.75 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 93%
- Prime listings
- 100%
- Out of stock, average day
- 22.3%
- Average rank
- #85in Baby Boys
- Average rating
- 4.75 starsAmazon United States average 4.42 stars
- Average reviews
- 17,869per listing
- Listings tracked
- 15
04 · Newcomers
6 of last year's 11 launches cleared the first-year sales bar.
11 products launched here in the last 12 months. 6 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 41 months on average, so the names here are settling in.
- Launched, last 12 months
- 11
- Successful launches
- 6Amazon's first-year sales bar
- Average brand age
- 41 months
Products
Top 18 Month Long Sleeve Onesies Boy 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
Simple Joys Baby Girls 5 pack long sleeve original bodysuit Shirt Pink/Navy/Mint 18 Months
- Price
- $16.84
- Rating
- 4.8/5
- Reviews
- 44,363
- 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 5-pack Long-sleeved Bodysuits Blue/Grey 24 Months
- Price
- $17.79
- Rating
- 4.8/5
- Reviews
- 39,809
- Age
- 2mo ago

Simple Joys by Carters Baby Boys 5-Pack Long-Sleeve Bodysuit Shirt solids 18 Months
- Price
- $17.59
- Rating
- 4.8/5
- Reviews
- 39,809
- Age
- 2mo ago

Simple Joys by Carters Baby Girls 5-Pack Long-Sleeve Bodysuit Shirt solid 18 Months
- Price
- $17.13
- Rating
- 4.8/5
- Reviews
- 44,363
- Age
- 2mo ago
Trending
estimated 90-day click momentum
Amazon Essentials Unisex Babies Long-Sleeve One-Piece Rashguard Bright Mint Green 12 Months
- Price
- $17.12
- Rating
- 4.4/5
- Reviews
- 91
- Age
- 4mo ago

Amazon Essentials x Sofia Grainge Unisex Babies Long Sleeve Crew Neck Bodysuit Pack of 3 Dark Green/Sheep/Stripe 18 Months
- Price
- $14.84
- Rating
- 4.7/5
- Reviews
- 466
- Age
- 9mo ago

Butterblu Blake 5-Pack Long Sleeve Bodysuits 100% Organic Cotton Baby Boys & Girls Frost 18 Months
- Price
- $30.87
- Rating
- 4.7/5
- Reviews
- 187
- Age
- 10mo ago

Hudson Baby Unisex Baby Cotton Long-Sleeve Bodysuits Cars 5-Pack 12-18 Months
- Price
- $13.99
- Rating
- 4.8/5
- Reviews
- 28,835
- Age
- 5y ago

Simple Joys by Carters Baby Boys 5-Pack Long-Sleeve Bodysuit Shirt bears/animals green/stripes 18 Months
- Price
- $17.40
- Rating
- 4.8/5
- Reviews
- 39,809
- Age
- 2mo ago
Newest
by launch date
Simple Joys Baby Girls 5 pack long sleeve original bodysuit Shirt Pink/Navy/Mint 18 Months
- Price
- $16.84
- Rating
- 4.8/5
- Reviews
- 44,363
- 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 5-pack Long-sleeved Bodysuits Blue/Grey 24 Months
- Price
- $17.79
- Rating
- 4.8/5
- Reviews
- 39,809
- Age
- 2mo ago

Simple Joys by Carters Baby Boys 5-Pack Long-Sleeve Bodysuit Shirt solids 18 Months
- Price
- $17.59
- Rating
- 4.8/5
- Reviews
- 39,809
- Age
- 2mo ago

Simple Joys by Carters Baby Girls 5-Pack Long-Sleeve Bodysuit Shirt solid 18 Months
- Price
- $17.13
- Rating
- 4.8/5
- Reviews
- 44,363
- Age
- 2mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 47% of clicks. Leaders hold, but buyers still shop past them.
Brands
5 falling
Sellers
5
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
47%
Top 20: 100%
Open market
0%
- Simple Joys by Carter's53%
- Amazon Essentials21%
- Gerber18%
- Butterblu4%
- Hudson Baby4%
Demand
18 Month Long Sleeve Onesies Boy search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 15.3×
Search terms
Top 18 Month Long Sleeve Onesies Boy search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- long sleeve onesies 12-18 months1K/yr
- 18 month long sleeve onesies boy7K/yr
- 18 month long sleeve onesies girls6K/yr
Reviews and returns
What reviews say buyers love and hate about 18 Month Long Sleeve Onesies Boy
We read the reviews and the return reasons for every product selling here.
“Color change after wash”
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.
19 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 18 Month Long Sleeve Onesies Boy 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









