---
title: "Baby Astronaut Costume — $24K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/baby-astronaut-costume"
last_updated: "2026-08-09T13:47:19.199Z"
locale: en
meta:
description: "Niche score 34/100 · $24K/yr market · 45K searches/yr · $20.98 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 34/100 · $24K/yr market · 45K searches/yr · $20.98 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Baby Astronaut Costume — $24K/yr Amazon US Niche (2026) - Flapen"
---
# **baby astronaut costume**
**Skip it**
High returns (12.7%) — this niche doesn't clear our bar today.
Market size 6Growth 13Conversion 31Competition 64Returns 0Price range 77Avg price 90Brand share 66Review moat 33Quality gap 19
**Avg price**
**Great****$20.98**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.78–$32.36**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****66%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****47%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Okay****3,205.03**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Okay****2.5%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-23.7%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$24K**
$24K/yr · 45K searches
**Returns**
**Bad****12.7%**
return rate — above 5% kills the launch gate
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, baby astronaut costume is a $24K/yr Amazon United States market (45K searches/yr). The top 5 brands hold 66% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 34/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **baby astronaut costume market data**
- **Units sold / yr**
- **500–750**
- avg 0–100/product
- **Revenue / yr**
- **$10K–$16K**
- units × avg price
- **Conversion rate**
- **2.5%**
- **Avg BSR**
- **#1,098**
- **Page quality**
- **0%**
- **Prime**
- **91%**
- **Sponsored**
- **88%**
- **Out of stock**
- **13.5%**
- **Avg brand age**
- **41 months**
- **Avg seller age**
- **196 days**
## **Competition & brand share**
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**22 **—flat
**Sellers**
**38**
**Top-5 brand share**
**66%**
Top 20: 99%
**Top-5 click share**
**47%**
Top 20: 86%
**Open market**
**30%**
- Cuddle Club17% - OLLULL16% - Happidoo15% - Singcoco10% - Jsiicennf8% - BUMPEXPAND5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -23.7% search growth over the last 90 days.
7K5KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct · busiest ÷ quietest = 14.8×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/baby-astronaut-costume/trend)
## **Top baby astronaut costume search terms**
- **baby astronaut outfit**8K/yr+40.9%0.7% conv. - **baby astronaut costume**21K/yr-49.4%0.8% conv. - **astronaut costume for baby**5K/yr-26.0%1.5% conv. - **infant astronaut costume**4K/yr+15.3%0.3% conv. - **astronaut baby outfit**2K/yr-3.9%0.6% conv. - **astronaut costume baby**3K/yr-27.7%0.7% conv. - **astronaut baby costume**3K/yr-53.9%0.9% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/baby-astronaut-costume/search-terms)
## **Top baby astronaut costume 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.
0%4%$9418%$2K12%$3K16%$4K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Happidoo Baby Boy 1st Birthday Outfit One Year Old Birthday Clothes Boy Astronaut Romper (White 12-18 Months)**Happidoo**$16.59**4.6★355 rev](https://www.amazon.com/dp/B0CXT9X6ZF) [2**Singcoco Baby Boy Girl Halloween Costume Outfit Infant Astronaut Costume (White 12-18 Months)**Singcoco**$15.45**4.7★589 rev](https://www.amazon.com/dp/B096ZQ98ZK) [3**OLLULL Baby Astronaut Costumes Unisex Toddler Space Suit Halloween Dress Up Romper Pilot Costume(White 6-12 Months)**OLLULL**$26.09**4.8★5,085 rev](https://www.amazon.com/dp/B0BW77G3CH) [4**Cuddle Club Astronaut Fleece Baby Bunting Bodysuit Hood Convertible Mittens Booties Zipper Breathable NASA Baby Romper**Cuddle Club**$29.11**4.8★1,384 rev](https://www.amazon.com/dp/B07SFTF2TG) [5**Jsiicennf Baby Boy Girls Toddler Astronaut Costume Space Suit Cosplay Dress-up Party Jumpsuit Halloween Rompers**Jsiicennf**$21.45**4.6★107 rev](https://www.amazon.com/dp/B0CHYHG47V)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**CREAIRY Two The Moon Toddler Baby Boy 2nd Birthday Outfit Astronaut Rocket Short Sleeve T-Shirt Shorts Set Summer Clothes (Apricot 2-3T)**CREAIRY**$14.80**1 rev4mo ago](https://www.amazon.com/dp/B0GR9ZLFBS) [**Mieeyali Baby Boys 1st Birthday Outfit Planet Astronaut Sweatshirt Jogger Pants One Year Old Boy Birthday Sweatsuit (Blue 12-18 Months)**Mieeyali**$18.22**26 rev11mo ago](https://www.amazon.com/dp/B0FJWTXXD2) [**IBTOM CASTLE Toddler Baby Boy First Trip Around the Sun Outfit One Birthday T-Shirt + Short Overalls Jumpsuit + Hat Explorer Clothes Set Cake Smash Photoshoot Newborn Infant Navy Blue 12-18 Months**IBTOM CASTLE**$19.87**15 rev1y ago](https://www.amazon.com/dp/B0FDWLKNTP) [**BUMPEXPAND 1st Birthday Outfit for Baby Boy First Birthday Space First Trip Around The Sun Outfit for One Year Old Boy Romper (Muticolor 12-18 Months)**BUMPEXPAND**$16.37**52 rev1y ago](https://www.amazon.com/dp/B0DZCGK43G) [**BUMPEXPAND 1st Birthday Outfit for Baby Boy First Birthday Space First Trip Around The Sun Outfit for One Year Old Boy Romper (Muticolor 6-12 Months)**BUMPEXPAND**$16.51**52 rev1y ago](https://www.amazon.com/dp/B0DZCH356W)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**CREAIRY Two The Moon Toddler Baby Boy 2nd Birthday Outfit Astronaut Rocket Short Sleeve T-Shirt Shorts Set Summer Clothes (Apricot 2-3T)**CREAIRY**$14.80**5.0★**▲ 364%**](https://www.amazon.com/dp/B0GR9ZLFBS) [**Cuddle Club Astronaut Fleece Baby Bunting Bodysuit Hood Convertible Mittens Booties Zipper Breathable NASA Baby Romper**Cuddle Club**$28.38**4.8★**▲ 350%**](https://www.amazon.com/dp/B07SB2X619) [**Gerber Baby Boys 4 Pack N Play Footie And Toddler Sleepers Space Newborn US**Gerber**$26.00**4.7★**▲ 330%**](https://www.amazon.com/dp/B0B6GZY9MK) [**Cuddle Club Astronaut Fleece Baby Bunting Bodysuit Hood Convertible Mittens Booties Zipper Breathable NASA Baby Romper**Cuddle Club**$28.40**4.8★**▲ 327%**](https://www.amazon.com/dp/B07SC667C4) [**IBTOM CASTLE Toddler Baby Boy First Trip Around the Sun Outfit One Birthday T-Shirt + Short Overalls Jumpsuit + Hat Explorer Clothes Set Cake Smash Photoshoot Newborn Infant Navy Blue 12-18 Months**IBTOM CASTLE**$19.87**5.0★**▲ 298%**](https://www.amazon.com/dp/B0FDWLKNTP)
**~~View all trending →~~**
## **What buyers say about baby astronaut costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**29%
*“Fits great”*
**Quality-Overall**11%
*“The patches attached are good quality and detailed”*
**Soft Feel**7%
*“The material is soft”*
**Comfort-Overall**5%
*“comfortable”*
**Gifting Purpose**4%
*“Cute gift for baby shower”*
**Warmth**4%
*“It feels cozy without being too heavy, which makes it ideal for fall and winter weather”*
**Advertised Vs Actual Product**4%
*“As described”*
**Value For Money**4%
*“Great value—cute set”*
**Material Quality**3%
*“The material is soft, warm, and very comfortable for baby skin”*
**Stretchability/Expandability/Elasticity**3%
*“The jogger pants fit nicely with the stretchy waistband”*
### **What buyers complain about **
**Size-Overall**15%
*“Pants were a little longer large for my 12 months old”*
**Thickness**10%
*“It is thinner material”*
**Stretchability/Expandability/Elasticity**9%
*“Additionally the legs do not have enough space for my baby to fully extend. all other NB onesies I have do”*
**Color**9%
*“Arrived Stained With Black Dye”*
**Material Quality**6%
*“- Fabric quality is on the lighter side”*
**Quality-Overall**2%
*“Poor quality”*
**Neck Fit**2%
*“runs small, especially around the neck”*
**Shrinkage Resistance**2%
*“Shrinks and runs small”*
**Value For Money**2%
*“the overall set looks much more expensive than expected”*
**Flexibility**1%
*“there isn't much flexibility here”*
### **Top return reasons **
**Size-Overall**60%
**Length**10%
**Material Quality**5%
**Advertised Vs Actual Product**3%
**Sleeve Fit**3%
**Product Condition**2%
**Value For Money**2%
**Zipper Quality**2%
**Quality-Overall**1%
**Thin**1%
## **Common questions**
- **Is baby astronaut costume profitable to sell on Amazon United States?**
- The niche generates $24K/yr across 34 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -23.7%. Flapen's verdict: Skip it (34/100).
- **How competitive is the baby astronaut costume niche?**
- 22 brands and 38 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 66% of demand.
- **What do buyers complain about in baby astronaut costume?**
- Top complaints mined from reviews: Size-Overall, Thickness, Stretchability/Expandability/Elasticity. The return rate is 12.7% — above our launch gate.
- **When does demand for baby astronaut costume peak?**
- Demand peaks in Sep–Oct; the busiest month runs 14.8× the quietest.
- **What does it cost to enter the baby astronaut costume niche?**
- Listings span $9.78–$32.36; the average listing price is $20.98 (sweet spot $15–$100). The average incumbent carries 3,205 reviews — the moat a new listing must climb.
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