---
title: "Astronaut Costume Kids — £52K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/fashion/astronaut-costume-kids"
last_updated: "2026-07-31T11:52:05.847Z"
locale: en
meta:
description: "Niche score 42/100 · £52K/yr market · 241K searches/yr · £15.52 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · £52K/yr market · 241K searches/yr · £15.52 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Astronaut Costume Kids — £52K/yr Amazon UK Niche (2026) - Flapen"
---
# **astronaut costume kids**
**Skip it**
Soft demand (-69.3% this quarter) — this niche doesn't clear our bar today.
Market size 13Growth 0Conversion 18Competition 74Returns 47Price range 74Avg price 76Brand share 57Review moat 56Quality gap 67
**Avg price**
**Great****£15.52**
avg listing price — sweet spot $15–$100
**Competition**
**Good****40%**
top-5 click share — leaders hold, buyers still browse
**Price range**
**Good****£8.87–£32.68**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Good****71%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Good****1,256.27**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Okay****3.3%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****1.4%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****£52K**
£52K/yr · 241K searches
**Growth**
**Bad****-69.3%**
90-day search growth — must beat 0% to launch
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United Kingdom niche tracking, astronaut costume kids is a £52K/yr Amazon United Kingdom market (241K searches/yr). The top 5 brands hold 71% of demand. Demand peaks in Feb–Mar–Oct. Verdict: Skip it — 42/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **astronaut costume kids market data**
- **Units sold / yr**
- **3K–4K**
- avg 0–100/product
- **Revenue / yr**
- **£47K–£62K**
- units × avg price
- **Conversion rate**
- **1.4%**
- **Avg BSR**
- **#756**
- **Page quality**
- **0%**
- **Prime**
- **78%**
- **Sponsored**
- **76%**
- **Out of stock**
- **15.8%**
- **Avg brand age**
- **36 months**
- **Avg seller age**
- **186 days**
## **Competition & brand share**
The top 5 products take 40% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**20 **▲rising
**Sellers**
**37**
**Top-5 brand share**
**71%**
Top 20: 100%
**Top-5 click share**
**40%**
Top 20: 81%
**Open market**
**24%**
- Vanilla Underground36% - Aomig13% - Spooktacular Creations8% - IDOTTA7% - BSBUY6% - AUYAO6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -69.3% search growth over the last 90 days.
35K25KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Feb, Mar, Oct · busiest ÷ quietest = 11.3×
[**Open Trend **](https://flapen.com/research/uk/fashion/astronaut-costume-kids/trend)
## **Top astronaut costume kids search terms**
- **astronaut costume kids**123K/yr-77.4%1.9% conv. - **astronaut costume**44K/yr-47.5%0.5% conv. - **space costume**12K/yr+20.4%0.2% conv. - **kids astronaut costume**19K/yr-73.7%1.8% conv. - **space costume kids**18K/yr-74.4%0.9% conv. - **kids space costume**11K/yr-61.3%0.9% conv. - **space suit**7K/yr-6.1%0.4% conv. - **astronaut costume kids nasa**4K/yr-77.7%1.9% conv. - **spaceman costume for kids**5K/yr-84.6%1.4% conv. [**All search terms **](https://flapen.com/research/uk/fashion/astronaut-costume-kids/search-terms)
## **Top astronaut costume kids 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%3%£2K6%£3K9%£5K12%£6K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**NASA Boys Onesie | Kids All in One Sleepsuit Pyjamas in Blue & White | Childrens Nightwear Zip Jumpsuit with American Space Logo | NASA Astronomy Bodysuit Loungewear Merchandise Gift**Vanilla Underground**£12.30**4.7★36 rev](https://www.amazon.co.uk/dp/B0DGTR29Q5) [2**NASA Boys Onesie | Kids All in One Sleepsuit Pyjamas in Blue & White | Childrens Nightwear Zip Jumpsuit with American Space Logo | NASA Astronomy Bodysuit Loungewear Merchandise Gift**Vanilla Underground**£12.66**4.7★36 rev](https://www.amazon.co.uk/dp/B0DGTR5XWQ) [3**Aomig Kids Astronaut Costume Unisex Astronaut Costume Cosplay Toys Space Adventure Outfit with Astronaut Helmet Bag and Gloves Spaceman Jumpsuit Fancy Dress for Girls or Boys World Book Day Gift**Aomig**£14.14**4.3★366 rev](https://www.amazon.co.uk/dp/B0DRNTXLBX) [4**NASA Boys Onesie | Kids All in One Sleepsuit Pyjamas in Blue & White | Childrens Nightwear Zip Jumpsuit with American Space Logo | NASA Astronomy Bodysuit Loungewear Merchandise Gift**Vanilla Underground**£12.69**4.7★36 rev](https://www.amazon.co.uk/dp/B0DGTQR84S) [5**NASA Boys Onesie | Kids All in One Sleepsuit Pyjamas in Blue & White | Childrens Nightwear Zip Jumpsuit with American Space Logo | NASA Astronomy Bodysuit Loungewear Merchandise Gift**Vanilla Underground**£12.32**4.7★36 rev](https://www.amazon.co.uk/dp/B0DGTPV5GV)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Zaldita Womens Metallic Shiny Space Alien Costumes Glitter Sequin Dance Leotard Astronaut Jumpsuit Clubwear Blue S**Zaldita**£18.27**0 rev2mo ago](https://www.amazon.co.uk/dp/B0H2948Y1P) [**AUYAO Kids Astronaut Costume Unisex Silver Astronaut Space Suit Childrens Spaceman Jumpsuit Space Adventure Outfit Astronaut Pilot Suit Fancy Dress Costumes for Halloween World Book Day Carnival(M)**AUYAO**£10.54**6 rev3mo ago](https://www.amazon.co.uk/dp/B0GWQJ7JZF) [**KumSoomliy Astronaut Costume for Kids Fancy Dress for Party Kids Space Costume with Astronaut Helmet and Gloves 4-5 Years**KumSoomliy**£13.86**10 rev4mo ago](https://www.amazon.co.uk/dp/B0GSR3BS3X) [**QHKEPW Boys Set Kids Outfits Clothes 3-4 Years Astronaut Toddler Clothing 2 Pcs Summer Short Sleeve T-Shirt Tops Shorts Round Neck White**QHKEPW**£12.89**4 rev7mo ago](https://www.amazon.co.uk/dp/B0G8X31SG7) [**Wizland Kids Astronaut Costume with Helmet & Gloves Boys and Girls Space Adventure Outfits Fancy Dress for Role Play World Book Day Gifts 5-7yrs**Wizland**£12.29**7 rev9mo ago](https://www.amazon.co.uk/dp/B0FXGFV2XZ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**AUYAO Kids Astronaut Costume Unisex Silver Astronaut Space Suit Childrens Spaceman Jumpsuit Space Adventure Outfit Astronaut Pilot Suit Fancy Dress Costumes for Halloween World Book Day Carnival(M)**AUYAO**£10.54**4.5★**▲ 237%**](https://www.amazon.co.uk/dp/B0GWQJ7JZF) [**Zaldita Womens Metallic Shiny Space Alien Costumes Glitter Sequin Dance Leotard Astronaut Jumpsuit Clubwear Blue S**Zaldita**£18.27**0.0★**▲ 237%**](https://www.amazon.co.uk/dp/B0H2948Y1P) [**KumSoomliy Astronaut Costume for Kids Fancy Dress for Party Kids Space Costume with Astronaut Helmet and Gloves 4-5 Years**KumSoomliy**£13.86**4.2★**▲ 235%**](https://www.amazon.co.uk/dp/B0GSR3BS3X) [**QHKEPW Boys Set Kids Outfits Clothes 3-4 Years Astronaut Toddler Clothing 2 Pcs Summer Short Sleeve T-Shirt Tops Shorts Round Neck White**QHKEPW**£12.89**4.1★**▲ 223%**](https://www.amazon.co.uk/dp/B0G8X31SG7) [**NASA Boys Onesie | Kids All in One Sleepsuit Pyjamas in Blue & White | Childrens Nightwear Zip Jumpsuit with American Space Logo | NASA Astronomy Bodysuit Loungewear Merchandise Gift**Vanilla Underground**£12.32**4.7★**▲ 202%**](https://www.amazon.co.uk/dp/B0DGTPV5GV)
**~~View all trending →~~**
## **What buyers say about astronaut costume kids**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**30%
*“Fitted nicely”*
**Quality-Overall**26%
*“The suit is good quality as well”*
**Value For Money**14%
*“Good costume, and well priced”*
**Advertised Vs Actual Product**8%
*“As described”*
**Material Quality**5%
*“The material feels comfortable enough for hours of play”*
**Weight Light**3%
*“Light and easy to use”*
**Creativity**3%
*“Children dressing and playing and letting their imagination go wild”*
**Comfort-Overall**1%
*“The material feels comfortable enough for hours of play”*
**Fun/Entertainment Experience**1%
*“One very happy 8yr old”*
**Ease Of Use**1%
*“Easy On and Off: If you have a toddler or young child, you know how crucial a quick costume change can be”*
### **What buyers complain about **
**Size-Overall**34%
*“Way to small”*
**Quality-Overall**20%
*“Terrible quality control”*
**Assembly/Installation**8%
*“Helmet a bit fidily to put together”*
**Gap/Hole**6%
*“Opened this to find it has a hole in it not happy”*
**Design-Overall**3%
*“like they were guessed rather than designed”*
**Ease Of Cleaning**3%
*“Arrived dirty and would need cleaning before being used”*
**Gifting Purpose**3%
*“Boy is super upset as this was a birthday present”*
**Durability**3%
*“doubt it will last more that two outings”*
**Thickness**2%
*“Fabric is a little thin”*
**Advertised Vs Actual Product**2%
*“Item doesn't match picture”*
### **Top return reasons **
**Size-Overall**76%
**Quality-Overall**7%
**Material Quality**4%
**Length**2%
**Defective Material/Parts**2%
**Product Condition**1%
**Value For Money**1%
**Thin**1%
**Shape/Style**1%
**Advertised Vs Actual Product**1%
## **Common questions**
- **Is astronaut costume kids profitable to sell on Amazon United Kingdom?**
- The niche generates £52K/yr across 41 tracked products. 0 of 13 products launched in the last 360 days are still selling. 90-day search growth is -69.3%. Flapen's verdict: Skip it (42/100).
- **How competitive is the astronaut costume kids niche?**
- 20 brands and 37 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 71% of demand.
- **What do buyers complain about in astronaut costume kids?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Assembly/Installation. The return rate is 3.3%.
- **When does demand for astronaut costume kids peak?**
- Demand peaks in Feb–Mar–Oct; the busiest month runs 11.3× the quietest.
- **What does it cost to enter the astronaut costume kids niche?**
- Listings span £8.87–£32.68; the average listing price is £15.52 (sweet spot $15–$100). The average incumbent carries 1,256 reviews — the moat a new listing must climb.
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