--- title: "18 month girl pajamas — Niche Verdict: Worth a look (58/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/clothing-shoes-jewelry/18-month-girl-pajamas" last_updated: "2026-07-09T23:11:07.555Z" locale: en meta: description: "18 month girl pajamas shows a fragmented shelf (top 5 take 11% of clicks), but a small market ($285K/yr) keeps it on the watch list." "og:description": "18 month girl pajamas shows a fragmented shelf (top 5 take 11% of clicks), but a small market ($285K/yr) keeps it on the watch list." "og:title": "18 month girl pajamas — Niche Verdict: Worth a look (58/100) | Amazon United States - Flapen" --- Back to Flapen home # **18 month girl pajamas** **Worth a look****58/100 ** 18 month girl pajamas shows a fragmented shelf (top 5 take 11% of clicks), but a small market ($285K/yr) keeps it on the watch list. **Market/yr** **$285K** **Growth (1y)** **+210.0%** **Products** **211** **Brands** **32** was 25 a year ago **Sellers** **32** **Price range** **$9.52–$43.39** **Returns** **3.0%** **Rating** **4.6★** **Worth a look** Scored 58/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **14** ×0.30 Growth **78** ×0.30 Competition **100** ×0.20 Quality gap **26** ×0.10 Returns **76** ×0.10 ## **Demand** Weekly Amazon search volume, last 104 weeks — +210.0% year over year. 30K15KPrime Day '24Spike '24Spike '25Prime Day '25Holiday '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND Peak months: Oct, Nov · busiest ÷ quietest = 2.0× ## **Competition** - Gerber26% - Simple Joys by Carter's22% - Amazon Essentials8% - Carter's7% - Onesies Brand7% - Burt's Bees Baby5% - Other (26 brands)26% Clicks spread well past the top 5 (11% combined) — an open shelf where new products get seen. 32 brands and 32 sellers compete here. **Brands** **32 **▲rising was 25 a year ago **Sellers** **32** **Top 5 brand share** **70%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![Amazon Essentials Unisex_baby Tight Fit Cotton Footed Pajama (2 Pack) Little Bunnies/Sheep 12 Months](https://m.media-amazon.com/images/I/41loEq7WY5L.jpg) [**Amazon Essentials Unisex_baby Tight Fit Cotton Footed Pajama (2 Pack) Little Bunnies/Sheep 12 Months**](https://www.amazon.com/dp/B0D9ZDYHHG) Amazon Essentials$15.954.4★6753%▲rising 2 ![Gerber Baby Girls 4-pack Footed Pajamas And Toddler Sleepers Apple And Woodland Floral 12 Months US](https://m.media-amazon.com/images/I/51b7Q1JOiUL.jpg) [**Gerber Baby Girls 4-pack Footed Pajamas And Toddler Sleepers Apple And Woodland Floral 12 Months US**](https://www.amazon.com/dp/B0B6DCY8GT) Gerber$37.324.6★6,7372%▲rising 3 ![Simple Joys by Carters Baby Girls 3-Pack Snug Fit Footed Cotton Pajamas Sleepwear floral/turtle/swan 18 Months](https://m.media-amazon.com/images/I/51gFBFbvUoL.jpg) [**Simple Joys by Carters Baby Girls 3-Pack Snug Fit Footed Cotton Pajamas Sleepwear floral/turtle/swan 18 Months**](https://www.amazon.com/dp/B07GXS4KCY) Simple Joys by Carter's$25.404.7★38,5592%▼falling 4 ![Simple Joys by Carters Baby Girls Loose-Fit Polyester Jersey Footed Pajamas Pack of 3 Dinosaur/Strawberry 18 Months](https://m.media-amazon.com/images/I/51CrIU9s3rL.jpg) [**Simple Joys by Carters Baby Girls Loose-Fit Polyester Jersey Footed Pajamas Pack of 3 Dinosaur/Strawberry 18 Months**](https://www.amazon.com/dp/B07GKMHTNG) Simple Joys by Carter's$25.164.6★17,9512%▼falling 5 ![Simple Joys by Carters Baby Toddler and Little Girls 6-Piece Snug-Fit Cotton Pajama Set](https://m.media-amazon.com/images/I/51njQsk4EEL.jpg) [**Simple Joys by Carters Baby Toddler and Little Girls 6-Piece Snug-Fit Cotton Pajama Set**](https://www.amazon.com/dp/B093TM3FBM) Simple Joys by Carter's$23.394.8★90,6112%—flat 6 ![Gerber Baby-Girls 3-Pack Snug Fit Footless One-Piece Cotton Pajamas Woodland Floral 18 Months](https://m.media-amazon.com/images/I/51mB0njxLWL.jpg) [**Gerber Baby-Girls 3-Pack Snug Fit Footless One-Piece Cotton Pajamas Woodland Floral 18 Months**](https://www.amazon.com/dp/B0DGNGBXM4) Gerber$29.244.5★2582%▲rising 7 ![Simple Joys by Carters Baby Girls 3-Pack Loose Fit Flame Resistant Polyester Footed Pajamas Sleepwear giraffe/rainbow/floral 12 Months](https://m.media-amazon.com/images/I/515ftkcph+L.jpg) [**Simple Joys by Carters Baby Girls 3-Pack Loose Fit Flame Resistant Polyester Footed Pajamas Sleepwear giraffe/rainbow/floral 12 Months**](https://www.amazon.com/dp/B07CL16VVF) Simple Joys by Carter's$24.394.6★17,9512%▲rising 8 ![Onesies Brand Baby Girls 3-Pack Snug Fit One-Piece Cotton Pajamas Rainbows 18 Months](https://m.media-amazon.com/images/I/51OJoOTQ5AL.jpg) [**Onesies Brand Baby Girls 3-Pack Snug Fit One-Piece Cotton Pajamas Rainbows 18 Months**](https://www.amazon.com/dp/B0B6YXNQMK) Onesies Brand$21.274.5★1,4942%—flat 9 ![Gerber Baby-Girls 3-Pack Snug Fit Footless One-Piece Cotton Pajamas Hearts 18 Months](https://m.media-amazon.com/images/I/51s616w8ETL.jpg) [**Gerber Baby-Girls 3-Pack Snug Fit Footless One-Piece Cotton Pajamas Hearts 18 Months**](https://www.amazon.com/dp/B0DGN6WNGQ) Gerber$26.514.5★2582%▲rising 10 ![Amazon Essentials Unisex_baby Tight Fit Cotton Footed Pajama (2 Pack) Little Bunnies/Pale Blue 18 Months](https://m.media-amazon.com/images/I/31Fchmg5w+L.jpg) [**Amazon Essentials Unisex_baby Tight Fit Cotton Footed Pajama (2 Pack) Little Bunnies/Pale Blue 18 Months**](https://www.amazon.com/dp/B0D9ZLJCTV) Amazon Essentials$15.444.4★6751%—flat 11 ![Simple Joys by Carters Baby Girls 3-Pack Snug Fit Footed Cotton Pajamas Sleepwear floral/turtle/swan 12 Months](https://m.media-amazon.com/images/I/51gFBFbvUoL.jpg) [**Simple Joys by Carters Baby Girls 3-Pack Snug Fit Footed Cotton Pajamas Sleepwear floral/turtle/swan 12 Months**](https://www.amazon.com/dp/B07GXVMG6F) Simple Joys by Carter's$25.964.7★38,5591%▼falling 12 ![Simple Joys by Carters Baby Girls 3-Pack Loose Fit Flame Resistant Polyester Footed Pajamas Sleepwear giraffe/rainbow/floral 18 Months](https://m.media-amazon.com/images/I/515ftkcph+L.jpg) [**Simple Joys by Carters Baby Girls 3-Pack Loose Fit Flame Resistant Polyester Footed Pajamas Sleepwear giraffe/rainbow/floral 18 Months**](https://www.amazon.com/dp/B07CLBDCC2) Simple Joys by Carter's$24.844.6★17,9511%▲rising 13 ![Gerber Baby Girls 2-pack Footed Pajamas And Toddler Sleepers Rose Garden Yellow 12 Months US](https://m.media-amazon.com/images/I/41oGlO1vXsL.jpg) [**Gerber Baby Girls 2-pack Footed Pajamas And Toddler Sleepers Rose Garden Yellow 12 Months US**](https://www.amazon.com/dp/B0B2ZYNK6D) Gerber$15.464.5★15,5651%▼falling 14 ![little planet by carters Baby 2-Piece Pajamas Made with Organic Cotton Gray Botanical Prints 18M](https://m.media-amazon.com/images/I/41kLyxIMXCL.jpg) [**little planet by carters Baby 2-Piece Pajamas Made with Organic Cotton Gray Botanical Prints 18M**](https://www.amazon.com/dp/B0CQD3SM6H) little planet by carter's$14.304.8★8381%—flat 15 ![Onesies Brand Baby Girls Snug Fit 4-Piece Pajama Set Berries 18 Months](https://m.media-amazon.com/images/I/51gD4oYKpFL.jpg) [**Onesies Brand Baby Girls Snug Fit 4-Piece Pajama Set Berries 18 Months**](https://www.amazon.com/dp/B0DK5YC1FL) Onesies Brand$18.144.6★1231%—flat **~~Showing 15 of 211 — show all ~~** ## **Product shelf** All 211 tracked products in this niche. Top sellersNewestTrending [![Amazon Essentials Unisex_baby Tight Fit Cotton Footed Pajama (2 Pack) Little Bunnies/Sheep 12 Months](https://m.media-amazon.com/images/I/41loEq7WY5L.jpg)**Amazon Essentials Unisex_baby Tight Fit Cotton Footed Pajama (2 Pack) Little Bunnies/Sheep 12 Months** Amazon Essentials**$15.95**4.4★675 reviews](https://www.amazon.com/dp/B0D9ZDYHHG) [![Gerber Baby Girls 4-pack Footed Pajamas And Toddler Sleepers Apple And Woodland Floral 12 Months US](https://m.media-amazon.com/images/I/51b7Q1JOiUL.jpg)**Gerber Baby Girls 4-pack Footed Pajamas And Toddler Sleepers Apple And Woodland Floral 12 Months US** Gerber**$37.32**4.6★6,737 reviews](https://www.amazon.com/dp/B0B6DCY8GT) [![Simple Joys by Carters Baby Girls 3-Pack Snug Fit Footed Cotton Pajamas Sleepwear floral/turtle/swan 18 Months](https://m.media-amazon.com/images/I/51gFBFbvUoL.jpg)**Simple Joys by Carters Baby Girls 3-Pack Snug Fit Footed Cotton Pajamas Sleepwear floral/turtle/swan 18 Months** Simple Joys by Carter's**$25.40**4.7★38,559 reviews](https://www.amazon.com/dp/B07GXS4KCY) [![Simple Joys by Carters Baby Girls Loose-Fit Polyester Jersey Footed Pajamas Pack of 3 Dinosaur/Strawberry 18 Months](https://m.media-amazon.com/images/I/51CrIU9s3rL.jpg)**Simple Joys by Carters Baby Girls Loose-Fit Polyester Jersey Footed Pajamas Pack of 3 Dinosaur/Strawberry 18 Months** Simple Joys by Carter's**$25.16**4.6★17,951 reviews](https://www.amazon.com/dp/B07GKMHTNG) [![Simple Joys by Carters Baby Toddler and Little Girls 6-Piece Snug-Fit Cotton Pajama Set](https://m.media-amazon.com/images/I/51njQsk4EEL.jpg)**Simple Joys by Carters Baby Toddler and Little Girls 6-Piece Snug-Fit Cotton Pajama Set** Simple Joys by Carter's**$23.39**4.8★90,611 reviews](https://www.amazon.com/dp/B093TM3FBM) [![Gerber Baby-Girls 3-Pack Snug Fit Footless One-Piece Cotton Pajamas Woodland Floral 18 Months](https://m.media-amazon.com/images/I/51mB0njxLWL.jpg)**Gerber Baby-Girls 3-Pack Snug Fit Footless One-Piece Cotton Pajamas Woodland Floral 18 Months** Gerber**$29.24**4.5★258 reviews](https://www.amazon.com/dp/B0DGNGBXM4) [![Simple Joys by Carters Baby Girls 3-Pack Loose Fit Flame Resistant Polyester Footed Pajamas Sleepwear giraffe/rainbow/floral 12 Months](https://m.media-amazon.com/images/I/515ftkcph+L.jpg)**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**$24.39**4.6★17,951 reviews](https://www.amazon.com/dp/B07CL16VVF) [![Onesies Brand Baby Girls 3-Pack Snug Fit One-Piece Cotton Pajamas Rainbows 18 Months](https://m.media-amazon.com/images/I/51OJoOTQ5AL.jpg)**Onesies Brand Baby Girls 3-Pack Snug Fit One-Piece Cotton Pajamas Rainbows 18 Months** Onesies Brand**$21.27**4.5★1,494 reviews](https://www.amazon.com/dp/B0B6YXNQMK) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Quality-Overall**14% *“Excellent quality”* **Soft Feel**13% *“Nice and soft”* **Size-Overall**13% *“Fit was accurate too”* **Comfort-Overall**7% *“Very comfortable”* **Material Quality**7% *“Soft material”* **Warmth**4% *“they provide adequate warmth”* **Color**3% *“Colors are beautiful”* **Value For Money**3% *“Worth it”* **Design-Overall**3% *“Cute designs”* **Weight Light**2% *“They are mostly lightweight however with really solidly sewn fabric”* ### **What buyers complain about ** **Size-Overall**24% *“Run very small”* **Quality-Overall**8% *“Not well made”* **Material Quality**6% *“Cheap material”* **Zipper Quality**5% *“Zipper and material feels cheap”* **Thickness**5% *“Not too thick or super warm”* **Durability**4% *“not durable”* **Stitch/Finish/Polish**3% *“One set was not sewn properly”* **Stretchability/Expandability/Elasticity**2% *“also seem stretched in others”* **Shrinkage Resistance**2% *“it will shrink”* **Machine Wash Suitability**2% *“Shrinks in wash”* #### **Top return reasons**- Size-Overall50% - Length13% - Material Quality9% - Zipper Quality3% - Thin3% - Advertised Vs Actual Product2% - Sleeve Fit2% - Thigh Fit2% - Arm Fit2% - Value For Money2%