12 month sleepers
Skip itSoft demand (-21.0% this quarter) — this niche doesn't clear our bar today.
Avg price
Incredible$23.73avg listing price — sweet spot $15–$100
Competition
Great25%top-5 click share — an open shelf
Price range
Great$12.74–$44.26cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Okay3.5%return rate — above 5% kills the launch gate
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Market size
Bad$90K$90K/yr · 258K searches
Conversion
Bad1.5%search→purchase rate — share of searches ending in a sale
Review moat
Bad17,803.19avg incumbent reviews — the moat a new listing must climb
Growth
Bad-21.0%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, 12 month sleepers is a $90K/yr Amazon United States market (258K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Feb. Verdict: Skip it — 41/100.
Data updated Jul 8, 2026 · scored weekly · How we score niches
12 month sleepers market data
- Units sold / yr
- 5K–6K
- avg 0–100/product
- Revenue / yr
- $119K–$142K
- units × avg price
- Conversion rate
- 1.5%
- Avg BSR
- #71
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 92%
- Out of stock
- 9.5%
- Avg brand age
- 39 months
- Avg seller age
- 167 days
Competition & brand share
Clicks spread well past the top 5 (25% combined) — an open shelf where new products get seen.Brands
16 rising
Sellers
17
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
25%
Top 20: 57%
Open market
13%
- Gerber31%
- Simple Joys by Carter's26%
- Amazon Essentials16%
- Onesies Brand6%
- Okayinn4%
- Yoofoss4%
- Open — no brand owns it (10 brands, 13%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -21.0% search growth over the last 90 days.Peak months: Feb · busiest ÷ quietest = 1.9×
Top 12 month sleepers search terms
- 9-12 month sleepers66K/yr
- 12 month sleepers59K/yr
- baby sleepers 12 months16K/yr
- carters 12 month pajamas17K/yr
- 12 month sleepers girl20K/yr
- 9-12 month pajamas14K/yr
- 12 month pjs10K/yr
- 12 month old pajamas7K/yr
- 12 month footed pajamas5K/yr
- 12 month sleeper6K/yr
Top 12 month sleepers 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/Pale Blue 12 Months
Amazon Essentials$16.284.4★675 rev
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 Boys Snug-fit Footed Cotton Pajamas Baby And Toddler Sleepers Blue/Green Dino 12 Months US
Simple Joys by Carter's$25.494.7★48,657 rev
Simple Joys by Carters Baby Girls 3-Pack Loose Fit Flame Resistant Polyester Footed Pajamas Sleepwear giraffe/rainbow/floral 12 Months
Simple Joys by Carter's$24.394.6★17,951 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 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 Baby Girls 3-Pack Loose Fit Flame Resistant Polyester Footed Pajamas Sleepwear giraffe/rainbow/floral 12 Months
Simple Joys by Carter's$24.3917,951 rev
Simple Joys by Carters Baby Boys Snug-Fit Footed Cotton Pajamas Pack of 3 Dinosaur/Animal 12 Months
Simple Joys by Carter's$25.8548,657 rev
Simple Joys by Carters Baby Girls 3-Pack Snug Fit Footed Cotton Pajamas Sleepwear floral/turtle/swan 12 Months
Simple Joys by Carter's$25.9638,559 rev
Simple Joys by Carters Baby Girls 3-Pack Loose Fit Flame Resistant Polyester Footed Pajamas Sleepwear dino/strawberry/flamingo 12 Months
Simple Joys by Carter's$25.4317,951 rev
Trending
90-day click momentum
Amazon Essentials Unisex_baby Tight Fit Cotton Footed Pajama (2 Pack) Pink/Polar Bear 12 Months
Amazon Essentials$16.184.4★
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$25.494.7★
Gerber Baby Girls 4-pack Footed Pajamas And Toddler Sleepers Apple And Woodland Floral 12 Months US
Gerber$37.324.6★
RRP Unisex Baby Footies Pajamas Rayon Derived From Bamboo Buttery Soft Sleep N Play PJs 2-Way Zipper Closure 0-18 Months(Grey/BlueGrey/Sage 12-18 Months)
RRP$29.434.6★
Simple Joys by Carters Baby 3-pack Snug-fit Footed Cotton Pajamas Ballerina/Moon/Bee 12 Months
Simple Joys by Carter's$25.244.7★
What buyers say about 12 month sleepers
What buyers praise and complain about, mined from review topics.What buyers love
“Soft and breathable”
“The sleep sack was great quality”
“The sizing is accurate”
“super comfortable”
“Good for the price”
“I have loved this sleep suit”
“They keep her warm at”
“Great zippers and good quality”
“The designs on these are as pretty in person as in the photos”
“comfortable material”
What buyers complain about
“Short body”
“Broken zipper”
“Poor Quality”
“Cheap material”
“Very thin material”
“broken after 2 months”
“stitching is twisted”
“Too tight on the arms”
“also seem stretched in others”
“Not as soft as I thought they would be”
Top return reasons
Common questions
- Is 12 month sleepers profitable to sell on Amazon United States?
- The niche generates $90K/yr across 78 tracked products. 22 of 27 products launched in the last 360 days are still selling. 90-day search growth is -21.0%. Flapen's verdict: Skip it (41/100).
- How competitive is the 12 month sleepers niche?
- 16 brands and 17 sellers compete. The top 5 products take 25% of clicks and top 5 brands hold 83% of demand.
- What do buyers complain about in 12 month sleepers?
- Top complaints mined from reviews: Size-Overall, Zipper Quality, Quality-Overall. The return rate is 3.5%.
- When does demand for 12 month sleepers peak?
- Demand peaks in Feb; the busiest month runs 1.9× the quietest.
- What does it cost to enter the 12 month sleepers niche?
- Listings span $12.74–$44.26; the average listing price is $23.73 (sweet spot $15–$100). The average incumbent carries 17,803 reviews — the moat a new listing must climb.