--- title: "18 month pajamas — Niche Verdict: Worth a look (57/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/clothing-shoes-jewelry/18-month-pajamas" last_updated: "2026-07-09T21:54:37.397Z" locale: en meta: description: "18 month pajamas shows a fragmented shelf (top 5 take 9% of clicks), but a small market ($127K/yr) keeps it on the watch list." "og:description": "18 month pajamas shows a fragmented shelf (top 5 take 9% of clicks), but a small market ($127K/yr) keeps it on the watch list." "og:title": "18 month pajamas — Niche Verdict: Worth a look (57/100) | Amazon United States - Flapen" --- Back to Flapen home # **18 month pajamas** **Worth a look****57/100 ** 18 month pajamas shows a fragmented shelf (top 5 take 9% of clicks), but a small market ($127K/yr) keeps it on the watch list. **Market/yr** **$127K** **Growth (1y)** **+255.3%** **Products** **257** **Brands** **34** was 22 a year ago **Sellers** **32** **Price range** **$9.52–$44.23** **Returns** **2.9%** **Rating** **4.6★** **Worth a look** Scored 57/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **6** ×0.30 Growth **82** ×0.30 Competition **100** ×0.20 Quality gap **28** ×0.10 Returns **76** ×0.10 ## **Demand** Weekly Amazon search volume, last 104 weeks — +255.3% year over year. 8K4KPrime Day '24Spike '24Holiday '24Prime Day '25Spike '25Black Friday '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND No pronounced peak months · busiest ÷ quietest = 1.5× ## **Competition** - Gerber26% - Simple Joys by Carter's23% - Amazon Essentials7% - Burt's Bees Baby6% - Onesies Brand6% - little planet by carter's4% - Other (28 brands)29% Clicks spread well past the top 5 (9% combined) — an open shelf where new products get seen. 34 brands and 32 sellers compete here. **Brands** **34 **▲rising was 22 a year ago **Sellers** **32** **Top 5 brand share** **67%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![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★6752%▼falling 2 ![Simple Joys By Carters Boys Snug-fit Footless Cotton Pajamas Baby And Toddler Sleepers Blue/Green Dino 18 Months US](https://m.media-amazon.com/images/I/51YoAMQRYiL.jpg) [**Simple Joys By Carters Boys Snug-fit Footless Cotton Pajamas Baby And Toddler Sleepers Blue/Green Dino 18 Months US**](https://www.amazon.com/dp/B0BL8FBQ6Z) Simple Joys by Carter's$24.314.8★52,4272%—flat 3 ![Gerber Baby Boys 4-Pack Footed Pajamas Bears & Trucks Grey 24 Months](https://m.media-amazon.com/images/I/51OIJ4E5A9L.jpg) [**Gerber Baby Boys 4-Pack Footed Pajamas Bears & Trucks Grey 24 Months**](https://www.amazon.com/dp/B08GH4WJ6B) Gerber$28.664.5★5,2032%▼falling 4 ![Simple Joys by Carters Baby Boys 3-Pack Snug Fit Footed Cotton Pajamas Sleepwear dino/animals green/lion 24 Months](https://m.media-amazon.com/images/I/51kNONMvyRL.jpg) [**Simple Joys by Carters Baby Boys 3-Pack Snug Fit Footed Cotton Pajamas Sleepwear dino/animals green/lion 24 Months**](https://www.amazon.com/dp/B07GKYSB89) Simple Joys by Carter's$25.494.7★48,6572%▼falling 5 ![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 6 ![Simple Joys by Carters Baby 3-pack Snug-fit Footless Cotton Pajamas Crab/Sea Creatures/Cars 24 Months](https://m.media-amazon.com/images/I/51KzBpE2FBL.jpg) [**Simple Joys by Carters Baby 3-pack Snug-fit Footless Cotton Pajamas Crab/Sea Creatures/Cars 24 Months**](https://www.amazon.com/dp/B0744PWMZ2) Simple Joys by Carter's$25.534.8★52,4271%▼falling 7 ![Gerber Baby Boys 2-Pack Footed Pajamas Bear Green Stripes White 24 Months](https://m.media-amazon.com/images/I/51gYmvNIJWL.jpg) [**Gerber Baby Boys 2-Pack Footed Pajamas Bear Green Stripes White 24 Months**](https://www.amazon.com/dp/B08GHCVFX9) Gerber$14.454.4★13,7531%▲rising 8 ![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★17,9511%▼falling 9 ![Simple Joys by Carters Baby and Toddler Boys 3-Pack Snug-Fit Footed Cotton Pajamas](https://m.media-amazon.com/images/I/51JR9s2FoYL.jpg) [**Simple Joys by Carters Baby and Toddler Boys 3-Pack Snug-Fit Footed Cotton Pajamas**](https://www.amazon.com/dp/B08QW22QWQ) Simple Joys by Carter's$25.454.7★48,6571%▼falling 10 ![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 11 ![Onesies Brand Baby Boys Snug Fit 4-Piece Pajama Set Treats 24 Months](https://m.media-amazon.com/images/I/516Tzc95uAL.jpg) [**Onesies Brand Baby Boys Snug Fit 4-Piece Pajama Set Treats 24 Months**](https://www.amazon.com/dp/B0DK5WFYCT) Onesies Brand$15.284.8★1051%—flat 12 ![Simple Joys By Carters Boys Snug-fit Footed Cotton Pajamas Baby And Toddler Sleepers Blue/Green Dino 18 Months US](https://m.media-amazon.com/images/I/51o7CeVTjLL.jpg) [**Simple Joys By Carters Boys Snug-fit Footed Cotton Pajamas Baby And Toddler Sleepers Blue/Green Dino 18 Months US**](https://www.amazon.com/dp/B0BL8FNBFV) Simple Joys by Carter's$25.574.7★48,6571%▲rising 13 ![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 14 ![Gerber Baby Boys 4-pack Footed Pajamas And Toddler Sleepers Dinosaurs Space Grey 18 Months US](https://m.media-amazon.com/images/I/512q+TZZ2UL.jpg) [**Gerber Baby Boys 4-pack Footed Pajamas And Toddler Sleepers Dinosaurs Space Grey 18 Months US**](https://www.amazon.com/dp/B08GHLBW8P) Gerber$29.964.5★5,2031%▼falling 15 ![Gerber Baby Boys 2-Pack Footed Pajamas Bear Green Stripes White 18 Months](https://m.media-amazon.com/images/I/51gYmvNIJWL.jpg) [**Gerber Baby Boys 2-Pack Footed Pajamas Bear Green Stripes White 18 Months**](https://www.amazon.com/dp/B08GHD7LPM) Gerber$14.444.4★13,7531%▼falling **~~Showing 15 of 257 — show all ~~** ## **Product shelf** All 257 tracked products in this niche. Top sellersNewestTrending [![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** Amazon Essentials**$15.44**4.4★675 reviews](https://www.amazon.com/dp/B0D9ZLJCTV) [![Simple Joys By Carters Boys Snug-fit Footless Cotton Pajamas Baby And Toddler Sleepers Blue/Green Dino 18 Months US](https://m.media-amazon.com/images/I/51YoAMQRYiL.jpg)**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**$24.31**4.8★52,427 reviews](https://www.amazon.com/dp/B0BL8FBQ6Z) [![Gerber Baby Boys 4-Pack Footed Pajamas Bears & Trucks Grey 24 Months](https://m.media-amazon.com/images/I/51OIJ4E5A9L.jpg)**Gerber Baby Boys 4-Pack Footed Pajamas Bears & Trucks Grey 24 Months** Gerber**$28.66**4.5★5,203 reviews](https://www.amazon.com/dp/B08GH4WJ6B) [![Simple Joys by Carters Baby Boys 3-Pack Snug Fit Footed Cotton Pajamas Sleepwear dino/animals green/lion 24 Months](https://m.media-amazon.com/images/I/51kNONMvyRL.jpg)**Simple Joys by Carters Baby Boys 3-Pack Snug Fit Footed Cotton Pajamas Sleepwear dino/animals green/lion 24 Months** Simple Joys by Carter's**$25.49**4.7★48,657 reviews](https://www.amazon.com/dp/B07GKYSB89) [![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 3-pack Snug-fit Footless Cotton Pajamas Crab/Sea Creatures/Cars 24 Months](https://m.media-amazon.com/images/I/51KzBpE2FBL.jpg)**Simple Joys by Carters Baby 3-pack Snug-fit Footless Cotton Pajamas Crab/Sea Creatures/Cars 24 Months** Simple Joys by Carter's**$25.53**4.8★52,427 reviews](https://www.amazon.com/dp/B0744PWMZ2) [![Gerber Baby Boys 2-Pack Footed Pajamas Bear Green Stripes White 24 Months](https://m.media-amazon.com/images/I/51gYmvNIJWL.jpg)**Gerber Baby Boys 2-Pack Footed Pajamas Bear Green Stripes White 24 Months** Gerber**$14.45**4.4★13,753 reviews](https://www.amazon.com/dp/B08GHCVFX9) [![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) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Soft Feel**15% *“Really soft”* **Size-Overall**14% *“Fit well”* **Quality-Overall**11% *“Great quality as usual from Carter”* **Comfort-Overall**8% *“Very comfortable”* **Material Quality**4% *“Great Material”* **Warmth**4% *“Keeps my baby warm”* **Sleep Quality**3% *“It really helps our baby sleep well”* **Value For Money**3% *“Good for the price”* **Design-Overall**3% *“Cute Designs”* **Color**3% *“Colors are beautiful”* ### **What buyers complain about ** **Size-Overall**21% *“Too big”* **Quality-Overall**7% *“Poor quality, runs way smaller than everything else from the brand”* **Material Quality**5% *“The material felt cheap”* **Zipper Quality**5% *“Broken zipper”* **Thickness**4% *“These were a lot thinner than I expected”* **Stretchability/Expandability/Elasticity**3% *“do not stretch”* **Arm Fit**3% *“Short arms”* **Durability**3% *“broken after 2 months”* **Stitch/Finish/Polish**2% *“One set was not sewn properly”* **Hard Feel**2% *“not super soft”* #### **Top return reasons**- Size-Overall53% - Length11% - Material Quality7% - Zipper Quality3% - Advertised Vs Actual Product3% - Thin2% - Sleeve Fit2% - Value For Money2% - Arm Fit2% - Thigh Fit1%