---
title: "Monsters Inc Costume — $0/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/monsters-inc-costume"
last_updated: "2026-08-12T03:26:15.474Z"
locale: en
meta:
description: "Niche score 41/100 · $0/yr market · 158K searches/yr · $33.31 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 41/100 · $0/yr market · 158K searches/yr · $33.31 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Monsters Inc Costume — $0/yr Amazon US Niche (2026) - Flapen"
---
# **monsters inc costume**
**Skip it**
A small market ($0/yr) — this niche doesn't clear our bar today.
Market size 0Growth 66Conversion 0Competition 65Returns 0Price range 94Avg price 95Brand share 70Review moat 41Quality gap 33
**Avg price**
**Incredible****$33.31**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$18.08–$101.47**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****63%**
top-5 brand share — brands hold most of the demand
**Growth**
**Good****+45.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Good****46%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Okay****2,423.87**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$0**
$0/yr · 158K searches
**Conversion**
**Bad****0.0%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Bad****14.9%**
return rate — above 5% kills the launch gate
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, monsters inc costume is a $0/yr Amazon United States market (158K searches/yr). The top 5 brands hold 63% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 41/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **monsters inc costume market data**
- **Units sold / yr**
- **500–750**
- avg 0–100/product
- **Revenue / yr**
- **$17K–$25K**
- units × avg price
- **Conversion rate**
- **0.0%**
- **Avg BSR**
- **#8,538**
- **Page quality**
- **0%**
- **Prime**
- **87%**
- **Sponsored**
- **87%**
- **Out of stock**
- **7.1%**
- **Avg brand age**
- **37 months**
- **Avg seller age**
- **185 days**
## **Competition & brand share**
The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**19 **▲rising
**Sellers**
**40**
**Top-5 brand share**
**63%**
Top 20: 100%
**Top-5 click share**
**46%**
Top 20: 87%
**Open market**
**33%**
- COSUSKET37% - Beauty Shine8% - NAITOKE7% - Disney6% - elope6% - HvnTjvn4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +45.6% search growth over the last 90 days.
125K75KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct · busiest ÷ quietest = 297.5×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/monsters-inc-costume/trend)
## **Top monsters inc costume search terms**
- **monsters inc halloween costumes**15K/yr+192.1%0.0% conv. - **monsters inc adult costume**34K/yr+41.5%0.1% conv. - **monsters inc family costumes**12K/yr+161.2%0.0% conv. - **monster ink costume**10K/yr+17.5%0.0% conv. - **monsters university costume**8K/yr+82.6%0.0% conv. - **monsters inc costumes adult**4K/yr+1.5%0.0% conv. - **monsters inc costume women**6K/yr+88.7%0.0% conv. - **monster inc family costume**4K/yr+35.9%0.0% conv. - **george sanderson monsters inc costume**6K/yr-31.4%0.0% conv. - **2319 monsters inc costume**8K/yr-3.6%0.0% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/monsters-inc-costume/search-terms)
## **Top monsters inc 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%10%$020%$030%$040%$01101001K10K 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**COSUSKET Snug Fit Unisex Adult Onesie Pajamas Flannel Cosplay Animal One Piece Halloween Costume Sleepwear Homewear**COSUSKET**$27.05**4.7★9,011 rev](https://www.amazon.com/dp/B097ZKLSHD) [2**COSUSKET Snug Fit Unisex Adult Onesie Pajamas Flannel Cosplay Animal One Piece Halloween Costume Sleepwear Homewear**COSUSKET**$25.99**4.7★9,011 rev](https://www.amazon.com/dp/B097ZL1LVS) [3**Beauty Shine Unisex Adult Onesie One Piece Pajamas Cosplay Cartoon Costume Halloween Christmas Sleepwear Jumpsuit Homewear(Mike Wazowski Medium)**Beauty Shine**$26.30**4.5★6,114 rev](https://www.amazon.com/dp/B07XKN4YYL) [4**elope Disney Monsters Inc Boo Velour Baby Carrier Cover Costume Infant Halloween Costume Character Standard**elope**$40.24**4.5★75 rev](https://www.amazon.com/dp/B0BSLWPX4Q) [5**Mike Wazowski Union Suit Disney Monsters Inc Hooded Kigarumi Adult Fleece Costume One Piece Pajama for Men and Women (L/XL)**MJC**$49.68**4.2★51 rev](https://www.amazon.com/dp/B0DJCDS33Q)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Disney Pixar Monsters Inc Sulley All-Over Print Adult Cosplay T-Shirt Tee(Teal Medium)**Disney**$24.04**0 rev4mo ago](https://www.amazon.com/dp/B0GT6DX12P) [**JenPen 4 Pcs Halloween Cartoon Costume Pink T-Shirt and Purple Leggings White Socks Purple Hair Ties Set for Costume(3t-4t)**JenPen**$28.66**34 rev1y ago](https://www.amazon.com/dp/B0FCFXV4ZX) [**Fun Costumes Womens Pixar Monsters Inc. Mike Wazowski Costume - Shirt Skirt Headband & Gloves**Fun Costumes**$88.76**3 rev1y ago](https://www.amazon.com/dp/B0F7RYNPZG) [**Mike Wazowski Union Suit Disney Monsters Inc Hooded Kigarumi Adult Fleece Costume One Piece Pajama for Men and Women (L/XL)**MJC**$49.68**51 rev1y ago](https://www.amazon.com/dp/B0DJCDS33Q) [**Lianshp Adult Animal and Sea Creature Onesie Pajamas Halloween Cosplay Costume Green**Lianshp**$22.85**204 rev2y ago](https://www.amazon.com/dp/B0D4YCK74T)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Disney Pixar Monsters Inc Sulley All-Over Print Adult Cosplay T-Shirt Tee(Teal Medium)**Disney**$24.04**0.0★**▲ 336%**](https://www.amazon.com/dp/B0GT6DX12P) [**ComfyCamper Polka Dots Furry Monsters Shirt - Adult Mens Cosplay Halloween Costume Womens Kids X-Large Blue**ComfyCamper**$22.33**4.3★**▲ 332%**](https://www.amazon.com/dp/B0C77M9GXQ) [**COSUSKET Snug Fit Unisex Adult Onesie Pajamas Flannel Cosplay Animal One Piece Halloween Costume Sleepwear Homewear Light Green**COSUSKET**$28.29**4.7★**▲ 285%**](https://www.amazon.com/dp/B097ZL5745) [**HvnTjvn Monster Adult Onesie Pajama Inc Costume Halloween christma Women M**HvnTjvn**$20.34**4.5★**▲ 278%**](https://www.amazon.com/dp/B0B4RMM5MZ) [**COSUSKET Snug Fit Unisex Adult Onesie Pajamas Flannel Cosplay Animal One Piece Halloween Costume Sleepwear Homewear**COSUSKET**$27.05**4.7★**▲ 218%**](https://www.amazon.com/dp/B097ZKLSHD)
**~~View all trending →~~**
## **What buyers say about monsters inc costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Material Quality**16%
*“I like that it is thick material for a cold Halloween night”*
**Quality-Overall**15%
*“Warm and quality costume for Halloween”*
**Comfort-Overall**13%
*“Very comfortable”*
**Warmth**11%
*“Great quality will keep child warm, fits perfectly”*
**Soft Feel**9%
*“Soft”*
**Value For Money**8%
*“great price great product”*
**Ease Of Use**8%
*“Easy Costume”*
**Size-Overall**7%
*“fits perfectly”*
**Color**6%
*“the color on it”*
**Zipper Quality**3%
*“zipper worked well”*
### **What buyers complain about **
**Quality-Overall**29%
*“the overall construction quality was disappointing”*
**Smell**19%
*“had a disturbing smell to the package”*
**Comfort-Overall**13%
*“So awkward in the middle”*
**Value For Money**13%
*“Price high”*
**Size-Overall**9%
*“Ordered a small received a medium”*
**Advertised Vs Actual Product**4%
*“Doesn't look like picture at all”*
**Color**4%
*“Not even close to same color”*
### **Top return reasons **
**Size-Overall**59%
**Length**11%
**Thigh Fit**4%
**Material Quality**3%
**Arm Fit**2%
**Quality-Overall**2%
**Advertised Vs Actual Product**2%
**Product Condition**2%
**Shape/Style**1%
**Smell**1%
## **Common questions**
- **Is monsters inc costume profitable to sell on Amazon United States?**
- The niche generates $0/yr across 30 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +45.6%. Flapen's verdict: Skip it (41/100).
- **How competitive is the monsters inc costume niche?**
- 19 brands and 40 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 63% of demand.
- **What do buyers complain about in monsters inc costume?**
- Top complaints mined from reviews: Quality-Overall, Smell, Comfort-Overall. The return rate is 14.9% — above our launch gate.
- **When does demand for monsters inc costume peak?**
- Demand peaks in Sep–Oct; the busiest month runs 297.5× the quietest.
- **What does it cost to enter the monsters inc costume niche?**
- Listings span $18.08–$101.47; the average listing price is $33.31 (sweet spot $15–$100). The average incumbent carries 2,424 reviews — the moat a new listing must climb.
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