--- title: "long sleeve onesies boy — Niche Verdict: Skip it (53/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/clothing-shoes-jewelry/long-sleeve-onesies-boy" last_updated: "2026-07-09T21:55:11.130Z" locale: en meta: description: "a small market ($71K/yr) — long sleeve onesies boy doesn't clear our bar today." "og:description": "a small market ($71K/yr) — long sleeve onesies boy doesn't clear our bar today." "og:title": "long sleeve onesies boy — Niche Verdict: Skip it (53/100) | Amazon United States - Flapen" --- Back to Flapen home # **long sleeve onesies boy** **Skip it****53/100 ** a small market ($71K/yr) — long sleeve onesies boy doesn't clear our bar today. **Market/yr** **$71K** **Growth (1y)** **+238.8%** **Products** **93** **Brands** **22** was 19 a year ago **Sellers** **22** **Price range** **$9.14–$58.41** **Returns** **2.4%** **Rating** **4.7★** **Skip it** Scored 53/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **4** ×0.30 Growth **81** ×0.30 Competition **90** ×0.20 Quality gap **20** ×0.10 Returns **81** ×0.10 ## **Demand** Weekly Amazon search volume, last 104 weeks — +238.8% year over year. 40K20KPrime Day '24Spike '24Prime Day '25Spike '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND Peak months: Sep, Oct, Nov, Dec · busiest ÷ quietest = 5.1× ## **Competition** - Simple Joys by Carter's30% - Gerber29% - Amazon Essentials10% - Hudson Baby7% - Butterblu5% - MEYSAHO4% - Other (16 brands)15% Clicks spread well past the top 5 (25% combined) — an open shelf where new products get seen. 22 brands and 22 sellers compete here. **Brands** **22 **▲rising was 19 a year ago **Sellers** **22** **Top 5 brand share** **81%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![Simple Joys by Carters unisex-baby 4-Pack Long-Sleeve Thermal Bodysuits Beige/Dark Grey/Grey/Ivory 3-6 Months](https://m.media-amazon.com/images/I/41+HrgTjr1L.jpg) [**Simple Joys by Carters unisex-baby 4-Pack Long-Sleeve Thermal Bodysuits Beige/Dark Grey/Grey/Ivory 3-6 Months**](https://www.amazon.com/dp/B08XXV7MVV) Simple Joys by Carter's$14.384.9★9,3116%▼falling 2 ![Amazon Essentials x Sofia Grainge Unisex Babies Long Sleeve Crew Neck Bodysuit Pack of 3 Dark Green/Sheep/Stripe 12 Months](https://m.media-amazon.com/images/I/41qR0WcBI5L.jpg) [**Amazon Essentials x Sofia Grainge Unisex Babies Long Sleeve Crew Neck Bodysuit Pack of 3 Dark Green/Sheep/Stripe 12 Months**](https://www.amazon.com/dp/B0FFJL8VP4) Amazon Essentials$14.694.7★4666%▲rising 3 ![Gerber Unisex Baby 6 Pack Long-sleeve Onesies Bodysuit And Toddler T-Shirt Set 6-pack White 6-9 Months US](https://m.media-amazon.com/images/I/31pWrTLj2zL.jpg) [**Gerber Unisex Baby 6 Pack Long-sleeve Onesies Bodysuit And Toddler T-Shirt Set 6-pack White 6-9 Months US**](https://www.amazon.com/dp/B07GG1RCTV) Gerber$16.834.8★8,6045%▼falling 4 ![Gerber Baby Boys 6-Pack Long-Sleeve Onesies Bodysuit Dinosaur Blue 12 Months](https://m.media-amazon.com/images/I/41LpD3JaupL.jpg) [**Gerber Baby Boys 6-Pack Long-Sleeve Onesies Bodysuit Dinosaur Blue 12 Months**](https://www.amazon.com/dp/B08CQR5WVN) Gerber$20.044.8★8,2715%▲rising 5 ![Simple Joys by Carters Baby Boys 5-Pack Long-Sleeve Bodysuit Shirt solids 3-6 Months](https://m.media-amazon.com/images/I/41YWNAWGJyL.jpg) [**Simple Joys by Carters Baby Boys 5-Pack Long-Sleeve Bodysuit Shirt solids 3-6 Months**](https://www.amazon.com/dp/B07GKN72PR) Simple Joys by Carter's$17.454.8★39,8093%▼falling 6 ![Simple Joys by Carters Baby 5-pack Long-sleeved Bodysuits Blue/Grey 24 Months](https://m.media-amazon.com/images/I/512EMOtPyPL.jpg) [**Simple Joys by Carters Baby 5-pack Long-sleeved Bodysuits Blue/Grey 24 Months**](https://www.amazon.com/dp/B06WD62VZZ) Simple Joys by Carter's$17.794.8★39,8093%▲rising 7 ![Simple Joys by Carters Baby Boys 5-Pack Long-Sleeve Bodysuit Shirt bears/animals green/stripes Newborn](https://m.media-amazon.com/images/I/41re+P0I+bL.jpg) [**Simple Joys by Carters Baby Boys 5-Pack Long-Sleeve Bodysuit Shirt bears/animals green/stripes Newborn**](https://www.amazon.com/dp/B079616YS3) Simple Joys by Carter's$17.124.8★39,8093%▲rising 8 ![Gerber Unisex Baby 6 Pack Long-sleeve Onesies Bodysuit And Toddler T-Shirt Set 6-pack White 24 Months US](https://m.media-amazon.com/images/I/31pWrTLj2zL.jpg) [**Gerber Unisex Baby 6 Pack Long-sleeve Onesies Bodysuit And Toddler T-Shirt Set 6-pack White 24 Months US**](https://www.amazon.com/dp/B07GFPRG6D) Gerber$16.554.8★8,6043%▲rising 9 ![Amazon Essentials x Sofia Grainge Unisex Babies Long Sleeve Crew Neck Bodysuit Pack of 3 Ivory/Light Camel/Stripe 3-6 Months](https://m.media-amazon.com/images/I/41QZXBKKbjL.jpg) [**Amazon Essentials x Sofia Grainge Unisex Babies Long Sleeve Crew Neck Bodysuit Pack of 3 Ivory/Light Camel/Stripe 3-6 Months**](https://www.amazon.com/dp/B0FFJD3FYF) Amazon Essentials$12.164.7★4663%▲rising 10 ![Butterblu Blake 5-Pack Long Sleeve Bodysuits 100% Organic Cotton Baby Boys & Girls Terra Newborn](https://m.media-amazon.com/images/I/41Bv05fp1wL.jpg) [**Butterblu Blake 5-Pack Long Sleeve Bodysuits 100% Organic Cotton Baby Boys & Girls Terra Newborn**](https://www.amazon.com/dp/B0FQRQ1RP4) Butterblu$32.354.7★1873%▲rising 11 ![Hudson Baby Unisex Baby Cotton Long-Sleeve Bodysuits Boy Daddy 5-Pack 6-9 Months](https://m.media-amazon.com/images/I/51jteD8IYQL.jpg) [**Hudson Baby Unisex Baby Cotton Long-Sleeve Bodysuits Boy Daddy 5-Pack 6-9 Months**](https://www.amazon.com/dp/B0CLMF66GQ) Hudson Baby$13.224.8★28,8353%▲rising 12 ![Gerber Baby 6 Pack Long-Sleeve Onesies Bodysuit White and Black 18 Months](https://m.media-amazon.com/images/I/41eH5YGJIBL.jpg) [**Gerber Baby 6 Pack Long-Sleeve Onesies Bodysuit White and Black 18 Months**](https://www.amazon.com/dp/B0C5FZPN23) Gerber$20.924.7★1,7812%▼falling 13 ![Simple Joys by Carters Baby 4-Pack Long-Sleeve Thermal Bodysuits](https://m.media-amazon.com/images/I/41+HrgTjr1L.jpg) [**Simple Joys by Carters Baby 4-Pack Long-Sleeve Thermal Bodysuits**](https://www.amazon.com/dp/B08XWF9WYH) Simple Joys by Carter's$14.524.9★9,3112%—flat 14 ![Simple Joys by Carters Boy 4-pack Long-sleeve Bodysuit Brown Football 3-6M](https://m.media-amazon.com/images/I/41wezgM9nYL.jpg) [**Simple Joys by Carters Boy 4-pack Long-sleeve Bodysuit Brown Football 3-6M**](https://www.amazon.com/dp/B0FKNCHCRY) Simple Joys by Carter's$16.874.8★4,2402%▼falling 15 ![Simple Joys Baby Boys 5-pack long sleeve original bodysuits Shirt Blue/Red/Grey 6-9 Months](https://m.media-amazon.com/images/I/51dWXFcMglL.jpg) [**Simple Joys Baby Boys 5-pack long sleeve original bodysuits Shirt Blue/Red/Grey 6-9 Months**](https://www.amazon.com/dp/B01MRDV6Q7) Simple Joys by Carter's$17.044.8★39,8092%—flat **~~Showing 15 of 93 — show all ~~** ## **Product shelf** All 93 tracked products in this niche. Top sellersNewestTrending [![Simple Joys by Carters unisex-baby 4-Pack Long-Sleeve Thermal Bodysuits Beige/Dark Grey/Grey/Ivory 3-6 Months](https://m.media-amazon.com/images/I/41+HrgTjr1L.jpg)**Simple Joys by Carters unisex-baby 4-Pack Long-Sleeve Thermal Bodysuits Beige/Dark Grey/Grey/Ivory 3-6 Months** Simple Joys by Carter's**$14.38**4.9★9,311 reviews](https://www.amazon.com/dp/B08XXV7MVV) [![Amazon Essentials x Sofia Grainge Unisex Babies Long Sleeve Crew Neck Bodysuit Pack of 3 Dark Green/Sheep/Stripe 12 Months](https://m.media-amazon.com/images/I/41qR0WcBI5L.jpg)**Amazon Essentials x Sofia Grainge Unisex Babies Long Sleeve Crew Neck Bodysuit Pack of 3 Dark Green/Sheep/Stripe 12 Months** Amazon Essentials**$14.69**4.7★466 reviews](https://www.amazon.com/dp/B0FFJL8VP4) [![Gerber Unisex Baby 6 Pack Long-sleeve Onesies Bodysuit And Toddler T-Shirt Set 6-pack White 6-9 Months US](https://m.media-amazon.com/images/I/31pWrTLj2zL.jpg)**Gerber Unisex Baby 6 Pack Long-sleeve Onesies Bodysuit And Toddler T-Shirt Set 6-pack White 6-9 Months US** Gerber**$16.83**4.8★8,604 reviews](https://www.amazon.com/dp/B07GG1RCTV) [![Gerber Baby Boys 6-Pack Long-Sleeve Onesies Bodysuit Dinosaur Blue 12 Months](https://m.media-amazon.com/images/I/41LpD3JaupL.jpg)**Gerber Baby Boys 6-Pack Long-Sleeve Onesies Bodysuit Dinosaur Blue 12 Months** Gerber**$20.04**4.8★8,271 reviews](https://www.amazon.com/dp/B08CQR5WVN) [![Simple Joys by Carters Baby Boys 5-Pack Long-Sleeve Bodysuit Shirt solids 3-6 Months](https://m.media-amazon.com/images/I/41YWNAWGJyL.jpg)**Simple Joys by Carters Baby Boys 5-Pack Long-Sleeve Bodysuit Shirt solids 3-6 Months** Simple Joys by Carter's**$17.45**4.8★39,809 reviews](https://www.amazon.com/dp/B07GKN72PR) [![Simple Joys by Carters Baby 5-pack Long-sleeved Bodysuits Blue/Grey 24 Months](https://m.media-amazon.com/images/I/512EMOtPyPL.jpg)**Simple Joys by Carters Baby 5-pack Long-sleeved Bodysuits Blue/Grey 24 Months** Simple Joys by Carter's**$17.79**4.8★39,809 reviews](https://www.amazon.com/dp/B06WD62VZZ) [![Simple Joys by Carters Baby Boys 5-Pack Long-Sleeve Bodysuit Shirt bears/animals green/stripes Newborn](https://m.media-amazon.com/images/I/41re+P0I+bL.jpg)**Simple Joys by Carters Baby Boys 5-Pack Long-Sleeve Bodysuit Shirt bears/animals green/stripes Newborn** Simple Joys by Carter's**$17.12**4.8★39,809 reviews](https://www.amazon.com/dp/B079616YS3) [![Gerber Unisex Baby 6 Pack Long-sleeve Onesies Bodysuit And Toddler T-Shirt Set 6-pack White 24 Months US](https://m.media-amazon.com/images/I/31pWrTLj2zL.jpg)**Gerber Unisex Baby 6 Pack Long-sleeve Onesies Bodysuit And Toddler T-Shirt Set 6-pack White 24 Months US** Gerber**$16.55**4.8★8,604 reviews](https://www.amazon.com/dp/B07GFPRG6D) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Size-Overall**20% *“Fit well”* **Soft Feel**13% *“They are very soft and breathable”* **Quality-Overall**11% *“Great quality and perfect for keeping baby warm”* **Gifting Purpose**8% *“Christmas present”* **Comfort-Overall**6% *“Nice and comfortable”* **Value For Money**5% *“Great deal”* **Warmth**5% *“Keeps baby warm”* **Color**4% *“the colors are beautiful”* **Material Quality**3% *“Material is soft, comfortable and value for the money is awesome”* **Ease Of Use**2% *“Easy to use”* ### **What buyers complain about ** **Size-Overall**26% *“Very very small”* **Quality-Overall**9% *“Cheap product”* **Advertised Vs Actual Product**6% *“The listing is deceptive”* **Smell**6% *“Horrible smell”* **Material Quality**6% *“Cheap material”* **Shrinkage Resistance**4% *“Bad shrinkage”* **Thickness**3% *“not very thick for colder weather”* **Gap/Hole**3% *“they already have holes”* **Pilling/Linting**3% *“Fabric pilling”* **Hard Feel**2% *“Not as soft as more expensive kind”* #### **Top return reasons**- Size-Overall63% - Length9% - Material Quality4% - Sleeve Fit4% - Advertised Vs Actual Product3% - Value For Money2% - Thin2% - Quality-Overall1% - Zipper Quality1% - Width1%