---
title: "sully monsters inc costume kids — Niche Verdict: Skip it (39/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/clothing-shoes-jewelry/sully-monsters-inc-costume-kids"
last_updated: "2026-07-14T01:16:28.486Z"
locale: en
meta:
  description: "a small market ($0/yr) — sully monsters inc costume kids doesn't clear our bar today."
  "og:description": "a small market ($0/yr) — sully monsters inc costume kids doesn't clear our bar today."
  "og:title": "sully monsters inc costume kids — Niche Verdict: Skip it (39/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **sully monsters inc costume kids**

**Skip it**

A small market ($0/yr) — this niche doesn't clear our bar today.

Market size 0Growth 54Conversion 0Competition 61Returns 0Price range 92Avg price 95Brand share 71Review moat 69Quality gap 23

**Avg price**

**Incredible****$25.51**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$11.93–$96.22**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Brand share**

**Good****62%**

top-5 brand share — brands hold most of the demand

**Review moat**

**Good****734**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Good****49%**

top-5 click share — leaders hold, buyers still browse

**Growth**

**Good****+25.8%**

90-day search growth — must beat 0% to launch

**Quality gap**

**Bad****4.6★**

avg incumbent rating — lower means beatable quality

**Market size**

**Bad****$0**

$0/yr · 52K searches

**Conversion**

**Bad****0.0%**

search→purchase rate — share of searches ending in a sale

**Returns**

**Bad****12.3%**

return rate — above 6% kills the launch gate

## **Competition**

The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**21 **▲rising

**Sellers**

**54**

**Top-5 brand share**

**62%**

**Open market**

**32%**

- LABULA23% - Wishliker14% - Nabobs10% - Disney8% - SCOPUCI8% - NAITOKE6%

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%4%$08%$012%$016%$0101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 30 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![LABULA Unisex Children Character Onesie Pajamas Kids Halloween Cosplay Costume/Homewear/Sleepwear](https://m.media-amazon.com/images/I/31lEqS1cfzL.jpg)**LABULA Unisex Children Character Onesie Pajamas Kids Halloween Cosplay Costume/Homewear/Sleepwear**LABULA**$20.70**4.5★191 rev](https://www.amazon.com/dp/B0D8TDJ5PX) [2![Wishliker Kids Animal Onesie Pajamas Halloween Cosplay Sully Costume One Piece Christmas Girls Boys Party Wear](https://m.media-amazon.com/images/I/31PvVeYdi9L.jpg)**Wishliker Kids Animal Onesie Pajamas Halloween Cosplay Sully Costume One Piece Christmas Girls Boys Party Wear**Wishliker**$24.96**4.6★244 rev](https://www.amazon.com/dp/B0D8W624K9) [3![LABULA Unisex Children Character Onesie Pajamas Kids Halloween Cosplay Costume/Homewear/Sleepwear](https://m.media-amazon.com/images/I/31lEqS1cfzL.jpg)**LABULA Unisex Children Character Onesie Pajamas Kids Halloween Cosplay Costume/Homewear/Sleepwear**LABULA**$20.27**4.5★191 rev](https://www.amazon.com/dp/B0D8TDZX5T) [4![Nabobs Unisex Animal Onesie Costume Flannel Halloween Cosplay Costume - Homewear Animal Outfit Sky-blue](https://m.media-amazon.com/images/I/41yOXApoOGL.jpg)**Nabobs Unisex Animal Onesie Costume Flannel Halloween Cosplay Costume - Homewear Animal Outfit Sky-blue**Nabobs**$11.93**4.7★76 rev](https://www.amazon.com/dp/B0FT7GRRXP) [5![SCOPUCI Unisex Children Animal Onesie Pajamas Kids Flannel Halloween Cosplay Costume/Homewear/Sleepwear Sky Blue](https://m.media-amazon.com/images/I/31tRnWySbKL.jpg)**SCOPUCI Unisex Children Animal Onesie Pajamas Kids Flannel Halloween Cosplay Costume/Homewear/Sleepwear Sky Blue**SCOPUCI**$25.38**4.4★1,212 rev](https://www.amazon.com/dp/B0CM68NP1X)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Mistletoe unicorn Kids Flannel demogorgon Onesie Pajamas Black](https://m.media-amazon.com/images/I/41lSU2zYRaL.jpg)**Mistletoe unicorn Kids Flannel demogorgon Onesie Pajamas Black**Mistletoe unicorn**$29.78**75 rev3mo ago](https://www.amazon.com/dp/B0GSJWGV7R) [![Disney Pixar Monsters Inc Dress Up to Play Zip-Up Hooded Coverall for Kids with 3D Horns Sulley (Blue 4T)](https://m.media-amazon.com/images/I/314BMDgqWeL.jpg)**Disney Pixar Monsters Inc Dress Up to Play Zip-Up Hooded Coverall for Kids with 3D Horns Sulley (Blue 4T)**Disney**$20.13**34 rev5mo ago](https://www.amazon.com/dp/B0GLMFLJYZ) [![Disney Pixar Monsters Inc Dress Up to Play Zip-Up Hooded Coverall for Kids with 3D Horns Sulley (Blue 5T)](https://m.media-amazon.com/images/I/314BMDgqWeL.jpg)**Disney Pixar Monsters Inc Dress Up to Play Zip-Up Hooded Coverall for Kids with 3D Horns Sulley (Blue 5T)**Disney**$19.78**34 rev5mo ago](https://www.amazon.com/dp/B0GLMQ8KM5) [![Disney Pixar Monsters Inc Dress Up to Play Zip-Up Hooded Coverall for Kids with 3D Horns Mike Wazowski (Green 5T)](https://m.media-amazon.com/images/I/31TYW4u95DL.jpg)**Disney Pixar Monsters Inc Dress Up to Play Zip-Up Hooded Coverall for Kids with 3D Horns Mike Wazowski (Green 5T)**Disney**$19.75**34 rev5mo ago](https://www.amazon.com/dp/B0GLLVMT37) [![Nabobs Unisex Animal Onesie Costume Flannel Halloween Cosplay Costume - Homewear Animal Outfit Sky-blue](https://m.media-amazon.com/images/I/41yOXApoOGL.jpg)**Nabobs Unisex Animal Onesie Costume Flannel Halloween Cosplay Costume - Homewear Animal Outfit Sky-blue**Nabobs**$11.93**76 rev9mo ago](https://www.amazon.com/dp/B0FT7GRRXP)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Disney Pixar Monsters Inc Dress Up to Play Zip-Up Hooded Coverall for Kids with 3D Horns Sulley (Blue 4T)](https://m.media-amazon.com/images/I/314BMDgqWeL.jpg)**Disney Pixar Monsters Inc Dress Up to Play Zip-Up Hooded Coverall for Kids with 3D Horns Sulley (Blue 4T)**Disney**$20.13**4.9★**▲ 644%**](https://www.amazon.com/dp/B0GLMFLJYZ) [![Unisex Onesie Kids Animal Pajamas Halloween Christmas Cosplay Costume6-8Years)](https://m.media-amazon.com/images/I/414XTiQ3dSL.jpg)**Unisex Onesie Kids Animal Pajamas Halloween Christmas Cosplay Costume6-8Years)**Unicorns Angels**$22.89**4.6★**▲ 644%**](https://www.amazon.com/dp/B0C6M2YQ4P) [![Mistletoe unicorn Kids Flannel demogorgon Onesie Pajamas Black](https://m.media-amazon.com/images/I/41lSU2zYRaL.jpg)**Mistletoe unicorn Kids Flannel demogorgon Onesie Pajamas Black**Mistletoe unicorn**$29.78**4.5★**▲ 638%**](https://www.amazon.com/dp/B0GSJWGV7R) [![Disney Monsters Inc. Mike Sully Toddler Boys Hooded T-Shirt and French Terry Shorts Outfit Set Sulley Mike 5T](https://m.media-amazon.com/images/I/41nc7oxasUL.jpg)**Disney Monsters Inc. Mike Sully Toddler Boys Hooded T-Shirt and French Terry Shorts Outfit Set Sulley Mike 5T**Disney**$24.29**4.7★**▲ 636%**](https://www.amazon.com/dp/B0CQZ6MKD9) [![Nabobs Unisex Animal Onesie Costume Flannel Halloween Cosplay Costume - Homewear Animal Outfit Sky-blue](https://m.media-amazon.com/images/I/41yOXApoOGL.jpg)**Nabobs Unisex Animal Onesie Costume Flannel Halloween Cosplay Costume - Homewear Animal Outfit Sky-blue**Nabobs**$11.93**4.7★**▲ 632%**](https://www.amazon.com/dp/B0FT7GRRXP)

**~~View all trending →~~**

## **Demand**

Weekly Amazon search volume, last 31 weeks — +25.8% search growth over the last 90 days.

175125Spike '26Dec '25Jan '26Feb '26Mar '26Apr '26May '26

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Size-Overall**18%

*“Fit was true to size”*

**Warmth**11%

*“kept my daughter warm on Halloween”*

**Soft Feel**10%

*“Soft, breathable fabric; comfortable for sleep or play”*

**Color**10%

*“very pretty”*

**Quality-Overall**9%

*“So cute and great quality”*

**Comfort-Overall**8%

*“very comfortable”*

**Fun/Entertainment Experience**5%

*“Super fun play costume”*

**Design-Overall**4%

*“The design is absolutely adorable”*

**Material Quality**4%

*“fuzzy fleece material”*

**Value For Money**3%

*“So adorable, definitely worth the price”*

### **What buyers complain about **

**Size-Overall**37%

*“Head hole was too small for my child so had to rip it a bit”*

**Quality-Overall**7%

*“Careless selling and no quality checks prior to shipping”*

**Gap/Hole**7%

*“There is a hole in pajama”*

**Thickness**4%

*“Fabric is thin”*

### **Top return reasons **

**Size-Overall**66%

**Length**7%

**Thigh Fit**6%

**Zipper Quality**4%

**Product Condition**4%

**Smell**3%

**Gap/Hole**2%

**Material Quality**2%

**Stitch/Finish/Polish**1%

**Advertised Vs Actual Product**1%