18 month boy pajamas
Worth a lookShows a fragmented shelf (top 5 take 6% of clicks), but soft demand (-19.8% this quarter) keeps it on the watch list.
Competition
Incredible6%top-5 click share — an open shelf
Avg price
Great$22.65avg listing price — sweet spot $15–$100
Price range
Great$9.87–$44.26cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$549K$549K/yr · 1.7M searches
Brand share
Good71%top-5 brand share — brands hold most of the demand
Returns
Good2.8%return rate — above 5% kills the launch gate
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad12,792.89avg incumbent reviews — the moat a new listing must climb
Conversion
Bad1.4%search→purchase rate — share of searches ending in a sale
Growth
Bad-19.8%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, 18 month boy pajamas is a $549K/yr Amazon United States market (1.7M searches/yr). The top 5 brands hold 71% of demand. Demand peaks in Feb–Oct–Nov. Verdict: Worth a look — 51/100.
Data updated Jul 8, 2026 · scored weekly · How we score niches
18 month boy pajamas market data
- Units sold / yr
- 30K–40K
- avg 0–100/product
- Revenue / yr
- $680K–$906K
- units × avg price
- Conversion rate
- 1.4%
- Avg BSR
- #73
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 93%
- Out of stock
- 5.3%
- Avg brand age
- 40 months
- Avg seller age
- 153 days
Competition & brand share
Clicks spread well past the top 5 (6% combined) — an open shelf where new products get seen.Brands
47 rising
Sellers
46
Top-5 brand share
71%
Top 20: 95%
Top-5 click share
6%
Top 20: 19%
Open market
39%
- Gerber20%
- Simple Joys by Carter's19%
- Amazon Essentials8%
- Yoofoss8%
- Burt's Bees Baby4%
- Onesies Brand3%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -19.8% search growth over the last 90 days.Peak months: Feb, Oct, Nov · busiest ÷ quietest = 1.7×
Top 18 month boy pajamas search terms
- 12 month boy pajamas151K/yr
- 12 month girl pajamas151K/yr
- 18 month boy pajamas140K/yr
- 18 month girl pajamas123K/yr
- 3-6 month sleepers124K/yr
- double zipper onesies64K/yr
- 6-9 month sleepers81K/yr
- newborn footie pajamas76K/yr
- 9-12 month sleepers66K/yr
- 18 month pajamas68K/yr
Top 18 month boy pajamas 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Amazon Essentials Unisex_baby Tight Fit Cotton Footed Pajama (2 Pack) Little Bunnies/Sheep 12 Months
Amazon Essentials$15.954.4★675 rev
Simple Joys by Carters Baby Boys Snug-Fit Footed Cotton Pajamas Pack of 3 Dinosaur/Animal 12 Months
Simple Joys by Carter's$25.854.7★48,657 rev
Amazon Essentials Unisex_baby Tight Fit Cotton Footed Pajama (2 Pack) Little Bunnies/Pale Blue 18 Months
Amazon Essentials$15.444.4★675 rev
Simple Joys By Carters Boys Snug-fit Footless Cotton Pajamas Baby And Toddler Sleepers Blue/Green Dino 18 Months US
Simple Joys by Carter's$24.314.8★52,427 rev
Gerber Baby Girls 4-pack Footed Pajamas And Toddler Sleepers Apple And Woodland Floral 12 Months US
Gerber$37.324.6★6,737 rev
Newest
by launch dateSimple Joys by Carters Baby Boys Snug-Fit Footed Cotton Pajamas Pack of 3 Dinosaur/Animal 12 Months
Simple Joys by Carter's$25.8548,657 rev
Simple Joys By Carters Boys Snug-fit Footless Cotton Pajamas Baby And Toddler Sleepers Blue/Green Dino 18 Months US
Simple Joys by Carter's$24.3152,427 rev
Simple Joys By Carters Boys Snug-fit Footed Cotton Pajamas Baby And Toddler Sleepers Blue/Green Dino 12 Months US
Simple Joys by Carter's$25.4948,657 rev
Simple Joys By Carters Boys Snug-fit Footed Cotton Pajamas Baby And Toddler Sleepers Blue/Green Dino 18 Months US
Simple Joys by Carter's$25.5748,657 rev
Simple Joys by Carters Baby and Toddler Boys 3-Pack Snug-Fit Footed Cotton Pajamas
Simple Joys by Carter's$25.4548,657 rev
Trending
90-day click momentum
Burts Bees Baby Organic Cotton Footed Pajamas for Boys Zipper PJ Sleeper Snug Fit Sleepwear with Non-Slip Bee Grips
Burt's Bees Baby$24.264.7★
Amazon Essentials Unisex_baby Tight Fit Cotton Footed Pajama (2 Pack) Little Bunnies/Sheep 12 Months
Amazon Essentials$15.954.4★
Amazon Essentials Unisex Babies Footed Sleep and Play Pack of 3 Dusty Rose/Dots/Stripe 3-6 Months
Amazon Essentials$18.974.6★
Simple Joys By Carters Boys Snug-fit Footed Cotton Pajamas Baby And Toddler Sleepers Blue/Green Dino 18 Months US
Simple Joys by Carter's$25.574.7★
Gerber Baby Girls 4-pack Footed Pajamas And Toddler Sleepers Apple And Woodland Floral 12 Months US
Gerber$37.324.6★
What buyers say about 18 month boy pajamas
What buyers praise and complain about, mined from review topics.What buyers love
“Material is soft”
“Fits as expected”
“Quality & colors are cute”
“Nice and comfortable”
“Amazing material”
“Great deal”
“Nice and warm”
“Good zipper”
“Colors are beautiful”
“Beautiful design”
What buyers complain about
“Too short”
“not well made”
“Cheap material”
“Very thick cotton fabric”
“Cheap zipper”
“broken after 2 months”
“and aren't super stretchy”
“not super soft”
“The arm pieces are way too thin”
“seams came undone very quickly as well”
Top return reasons
Common questions
- Is 18 month boy pajamas profitable to sell on Amazon United States?
- The niche generates $549K/yr across 468 tracked products. 134 of 183 products launched in the last 360 days are still selling. 90-day search growth is -19.8%. Flapen's verdict: Worth a look (51/100).
- How competitive is the 18 month boy pajamas niche?
- 47 brands and 46 sellers compete. The top 5 products take 6% of clicks and top 5 brands hold 71% of demand.
- What do buyers complain about in 18 month boy pajamas?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Material Quality. The return rate is 2.8%.
- When does demand for 18 month boy pajamas peak?
- Demand peaks in Feb–Oct–Nov; the busiest month runs 1.7× the quietest.
- What does it cost to enter the 18 month boy pajamas niche?
- Listings span $9.87–$44.26; the average listing price is $22.65 (sweet spot $15–$100). The average incumbent carries 12,793 reviews — the moat a new listing must climb.