---
title: "Girl Costumes 4-6 — $4K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/girl-costumes-4-6"
last_updated: "2026-08-12T19:01:37.972Z"
locale: en
meta:
description: "Amazon product research for girl costumes 4-6: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for girl costumes 4-6: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Girl Costumes 4-6 — $4K/mo Amazon US Product Research (2026)"
---
# **Girl Costumes 4-6**
**Skip it**
A small market ($48K/yr) — this niche doesn't clear our bar today.
Market size 12Growth 15Conversion 19Competition 59Returns 56Price range 83Avg price 95Brand share 23Review moat 46Quality gap 25
**Avg price**
**Incredible****$25.18**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$10.55–$39.34**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****50%**
top-5 click share — leaders hold, buyers still browse
**Returns**
**Good****2.8%**
return rate — above 5% kills the launch gate
**Review moat**
**Okay****1,856.78**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****91%**
top-5 brand share — brand-locked demand
**Conversion**
**Bad****1.5%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-19.3%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$48K**
$48K/yr · 125K searches
## **Is girl costumes 4-6 profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, girl costumes 4-6 is a $48K/yr Amazon United States market (125K searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Aug–Sep–Oct–Nov. Verdict: Skip it — 36/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **girl costumes 4-6 market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **2K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$38K–$50K**
- units × avg price
- **Conversion rate**
- **1.5%**
- **Avg BSR**
- **#6,030**
- **Page quality**
- **0%**
- **Prime**
- **84%**
- **Sponsored**
- **50%**
- **Out of stock**
- **0.8%**
- **Avg brand age**
- **39 months**
- **Avg seller age**
- **175 days**
## **Competition: brands, sellers & click share**
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **▲rising
**Sellers**
**56**
**Top-5 brand share**
**91%**
Top 20: 100%
**Top-5 click share**
**50%**
Top 20: 88%
**Open market**
**7%**
- Disguise35% - PJ Masks28% - INTIMO21% - Maribus-FL4% - Spirit Halloween3% - Fedio2% - Open — no brand owns it (5 brands, 7%)
## **girl costumes 4-6 demand & seasonality**
Weekly Amazon search volume, last 84 weeks — -19.3% search growth over the last 90 days.
15K10KHoliday '24Spike '25Prime Day '25Spike '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Aug, Sep, Oct, Nov · busiest ÷ quietest = 29.3×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/girl-costumes-4-6/trend)
## **Top girl costumes 4-6 search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **owlette costume**31K/yr-19.5%1.6% conv. - **girl costumes 4-6**16K/yr-32.4%0.2% conv. - **costumes for girls 4-6**8K/yr-14.2%0.4% conv. - **owlet costume**4K/yr-26.9%0.8% conv. - **5t costumes girls**11K/yr+0.0%0.0% conv. - **costume for girls 4-6**6K/yr-54.3%0.5% conv. - **4 year old halloween costume girl**8K/yr+75.0%0.0% conv. - **5t girl halloween costume**10K/yr+119.2%0.0% conv. - **5 year old halloween costumes girl**8K/yr+43.0%0.0% conv. - **halloween costumes for girls 5t**6K/yr+62.2%0.0% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/girl-costumes-4-6/search-terms)
## **Top girl costumes 4-6 products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$2K10%$5K15%$7K20%$10K101001K10K 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**PJ Masks Girls Toddler Owlette Fleece Zip-Up Hoodie with Mesh Mask & Detachable Cape Superhero Costume Sweatshirt (Pink 4T)**PJ Masks**$25.69**4.5★162 rev](https://www.amazon.com/dp/B01KYAYC0O) [2**Disguise Owlette Costume Official PJ Masks Glow Costume Jumpsuit and Mask Toddler Size Medium (3T-4T)**Disguise**$35.96**4.6★2,425 rev](https://www.amazon.com/dp/B01BVF9HZ6) [3**PJ Masks Girls Toddler Owlette Fleece Zip-Up Hoodie with Mesh Mask & Detachable Cape Superhero Costume Sweatshirt (Pink 3T)**PJ Masks**$18.56**4.7★316 rev](https://www.amazon.com/dp/B01KYAXAAC) [4**Disguise Owlette Costume Official PJ Masks Glow Costume Jumpsuit and Mask Toddler Size Small (2T)**Disguise**$31.13**4.6★2,425 rev](https://www.amazon.com/dp/B01BVF9HSS) [5**PJ Masks Toddler Girls Owlette Fearless 2 Piece Long Sleeve Pajama Set (4T) Red**INTIMO**$25.28**4.6★14 rev](https://www.amazon.com/dp/B0F2GCCWQ1)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**PJ Masks Toddler Girls Owlette Fearless 2 Piece Long Sleeve Pajama Set (4T) Red**INTIMO**$25.28**14 rev1y ago](https://www.amazon.com/dp/B0F2GCCWQ1) [**PJ Masks Toddler Girls Owlette Fearless 2 Piece Long Sleeve Pajama Set (5T) Red**INTIMO**$23.61**14 rev1y ago](https://www.amazon.com/dp/B0F2GKXT69) [**Fedio Princess Dress up for Girls Unicorn Light up Princess Cape Set Light up Princess Dress with Unicorn Toys for Girls 3-8 Halloween Pink**Fedio**$18.25**626 rev1y ago](https://www.amazon.com/dp/B0DBQH46SK) [**LIMIROLER 18 Pcs Princess Dress Up Clothes for Little Girl Role Play Costume Gift Set Princess Dress Up Toys for Toddler Girls Birthday Christmas Party Gifts for Girls Aged 3-6 Years Old**LIMIROLER**$31.98**1,534 rev1y ago](https://www.amazon.com/dp/B0DF2V6NHW) [**Disney Junior SuperKitties Ginny Dress Up Costume Set 5-Piece Superhero Role Play Outfit with Mask Gloves & Tail Size 46X Kids Ages 3 and Up by Just Play Kids Toys for Ages 3 Up by Just Play**Just Play**$17.69**420 rev1y ago](https://www.amazon.com/dp/B0CQKHT3NS)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**PJ Masks Toddler Girls Gekko Catboy Owlette Characters Sleep Pajama Dress Nightgown (5T) Pink**INTIMO**$24.22**4.6★**▲ 562%**](https://www.amazon.com/dp/B0C3KBLGTM) [**PJ Masks Toddler Girls Owlette Fearless 2 Piece Long Sleeve Pajama Set (4T) Red**INTIMO**$25.28**4.6★**▲ 544%**](https://www.amazon.com/dp/B0F2GCCWQ1) [**PJ Masks Toddler Girls Gekko Catboy Owlette Protect Our Planet Footless Sleeper Pajama (6) Pink**INTIMO**$25.08**4.5★**▲ 528%**](https://www.amazon.com/dp/B0CJ1437Q5) [**PJ Masks Toddler Girls Gekko Catboy Owlette Characters Sleep Pajama Dress Nightgown (3T) Pink**INTIMO**$24.74**4.6★**▲ 505%**](https://www.amazon.com/dp/B0C3KDD2Y9) [**PJ Masks Toddler Girls Gekko Catboy Owlette Protect Our Planet Footless Sleeper Pajama (4T) Pink**INTIMO**$23.93**4.5★**▲ 485%**](https://www.amazon.com/dp/B0CHXSJHZX)
**~~View all trending →~~**
## **What reviews say buyers love and hate about girl costumes 4-6**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**19%
*“Sizing was accurate”*
**Value For Money**16%
*“Well worth it”*
**Quality-Overall**12%
*“These princess costumes are such high quality”*
**Fun/Entertainment Experience**11%
*“the kids enjoy it”*
**Gifting Purpose**9%
*“Great gift”*
**Material Quality**6%
*“durable material that is also really easy to clean”*
**Ease Of Use**5%
*“Easy to use”*
**Color**4%
*“the colors are so pretty”*
**Brightness/Shine/Glow**3%
*“Really does light up”*
**Advertised Vs Actual Product**2%
*“The product is accurate to pictures and description”*
### **What buyers complain about **
**Quality-Overall**29%
*“Very cheap looking and quality”*
**Size-Overall**16%
*“Size issue”*
**Material Quality**10%
*“Ugly terrible material”*
**Durability**9%
*“Breaks easily”*
**Advertised Vs Actual Product**4%
*“Not as advertised”*
**Stitch/Finish/Polish**3%
*“a whole section of that came off due to the crappy stitchibg”*
**Strap/String Quality**3%
*“Holes,strings hanging,seams coming undone”*
**Design-Overall**2%
*“Not well designed especially the tops”*
**Thickness**2%
*“Super thin”*
**Comfort-Overall**2%
*“Not cozy and comfortable”*
### **Top return reasons **
**Size-Overall**48%
**Quality-Overall**14%
**Advertised Vs Actual Product**9%
**Material Quality**7%
**Defective Material/Parts**3%
**Value For Money**2%
**Product Condition**2%
**Stitch/Finish/Polish**2%
**Gifting Purpose**2%
**Length**1%
## **Common girl costumes 4-6 questions**
- **Is girl costumes 4-6 profitable to sell on Amazon United States?**
- The niche generates $48K/yr across 32 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -19.3%. Flapen's verdict: Skip it (36/100).
- **How competitive is the girl costumes 4-6 niche?**
- 11 brands and 56 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 91% of demand.
- **What do buyers complain about in girl costumes 4-6?**
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Material Quality. The return rate is 2.8%.
- **When does demand for girl costumes 4-6 peak?**
- Demand peaks in Aug–Sep–Oct–Nov; the busiest month runs 29.3× the quietest.
- **What does it cost to enter the girl costumes 4-6 niche?**
- Listings span $10.55–$39.34; the average listing price is $25.18 (sweet spot $15–$100). The average incumbent carries 1,857 reviews — the moat a new listing must climb.
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