---
title: "professor trelawney costumes — Niche Verdict: Skip it (36/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/clothing-shoes-jewelry/professor-trelawney-costumes"
last_updated: "2026-07-13T23:29:37.879Z"
locale: en
meta:
  description: "a small market ($30K/yr) — professor trelawney costumes doesn't clear our bar today."
  "og:description": "a small market ($30K/yr) — professor trelawney costumes doesn't clear our bar today."
  "og:title": "professor trelawney costumes — Niche Verdict: Skip it (36/100) | Amazon United States - Flapen"
---

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# **professor trelawney costumes**

**Skip it**

A small market ($30K/yr) — this niche doesn't clear our bar today.

Market size 7Growth 21Conversion 40Competition 24Returns 30Price range 68Avg price 95Brand share 54Review moat 46Quality gap 55

**Avg price**

**Incredible****$39.55**

avg listing price — sweet spot $15–$100

**Price range**

**Good****$6.11–$130.97**

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

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Brand share**

**Good****73%**

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

**Review moat**

**Okay****1,903.15**

avg incumbent reviews — the moat a new listing must climb

**Conversion**

**Okay****3.2%**

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

**Returns**

**Okay****5.3%**

return rate — above 6% kills the launch gate

**Competition**

**Bad****72%**

top-5 click share — a locked-up shelf

**Growth**

**Bad****-9.0%**

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

**Market size**

**Bad****$30K**

$30K/yr · 24K searches

## **Competition**

The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**12 **▲rising

**Sellers**

**11**

**Top-5 brand share**

**73%**

**Open market**

**20%**

- Disguise28% - elope20% - Iconikal9% - Fun Costumes8% - KMAZN8% - Tigeen7%

## **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%10%$3K20%$6K30%$9K40%$12K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

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

All 13 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Disguise Harry Potter Professor Trelawney Deluxe Adult Costume Officially Licensed Halloween Costume Outfit Size (12-14)](https://m.media-amazon.com/images/I/41dV4f2gpjL.jpg)**Disguise Harry Potter Professor Trelawney Deluxe Adult Costume Officially Licensed Halloween Costume Outfit Size (12-14)**Disguise**$61.80**5.0★4 rev](https://www.amazon.com/dp/B0D68R19WW) [2![elope Professor Trelawney Headscarf Kit Standard](https://m.media-amazon.com/images/I/41+62zTcWyL.jpg)**elope Professor Trelawney Headscarf Kit Standard**elope**$6.88**4.8★7 rev](https://www.amazon.com/dp/B0BS2FLKXV) [3![Iconikal Thick Lens Nerd Costume Glasses Small Black 5.5x2.1-Inch Plastic Frames Wizard Scientist Dress-Up Halloween Cosplay Party Accessory](https://m.media-amazon.com/images/I/416E72PCltL.jpg)**Iconikal Thick Lens Nerd Costume Glasses Small Black 5.5x2.1-Inch Plastic Frames Wizard Scientist Dress-Up Halloween Cosplay Party Accessory**Iconikal**$6.11**4.1★272 rev](https://www.amazon.com/dp/B09TBHGKVX) [4![KMAZN Womens Casual Loose Long Cotton Bib Overalls Baggy Linen Plus Size Jumpsuits Rompers Wide Leg Pants QG5 001 L](https://m.media-amazon.com/images/I/41rKb5f-FlL.jpg)**KMAZN Womens Casual Loose Long Cotton Bib Overalls Baggy Linen Plus Size Jumpsuits Rompers Wide Leg Pants QG5 001 L**KMAZN**$17.67**3.9★1,413 rev](https://www.amazon.com/dp/B09NMKNMGW) [5![Tigeen 3 Pcs Halloween Costume Professor Nerd Dress up Costume Set Wig Halloween Movie Cosplay Punk Wig Thick Lens Nerd Glasses Blonde Long Curly Fluffy Hair Boho Wide Headbands for Women Cosplay](https://m.media-amazon.com/images/I/51y5ypB-hcL.jpg)**Tigeen 3 Pcs Halloween Costume Professor Nerd Dress up Costume Set Wig Halloween Movie Cosplay Punk Wig Thick Lens Nerd Glasses Blonde Long Curly Fluffy Hair Boho Wide Headbands for Women Cosplay**Tigeen**$19.18**4.2★24 rev](https://www.amazon.com/dp/B0C5HHXNN3)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Coume 4 Pcs Halloween Professor Costume Skirt Vest Headband Punk Wig for Movie Cosplay Halloween Women Dress up](https://m.media-amazon.com/images/I/51-gDObq5DL.jpg)**Coume 4 Pcs Halloween Professor Costume Skirt Vest Headband Punk Wig for Movie Cosplay Halloween Women Dress up**Coume**$36.24**3 rev11mo ago](https://www.amazon.com/dp/B0FL2GXNL8) [![Maiteenly Halloween Professor Costume Halloween Wizard Wig Suede Vest Headband Glasses Canvas Bag for Nerd Prophecy Teacher Cosplay](https://m.media-amazon.com/images/I/51sAw6pfhwL.jpg)**Maiteenly Halloween Professor Costume Halloween Wizard Wig Suede Vest Headband Glasses Canvas Bag for Nerd Prophecy Teacher Cosplay**Maiteenly**$33.32**7 rev1y ago](https://www.amazon.com/dp/B0DCG8CJPD) [![Disguise Harry Potter Professor Trelawney Deluxe Adult Costume Officially Licensed Halloween Costume Outfit Size (12-14)](https://m.media-amazon.com/images/I/41dV4f2gpjL.jpg)**Disguise Harry Potter Professor Trelawney Deluxe Adult Costume Officially Licensed Halloween Costume Outfit Size (12-14)**Disguise**$61.80**4 rev2y ago](https://www.amazon.com/dp/B0D68R19WW) [![Tigeen 3 Pcs Halloween Costume Professor Nerd Dress up Costume Set Wig Halloween Movie Cosplay Punk Wig Thick Lens Nerd Glasses Blonde Long Curly Fluffy Hair Boho Wide Headbands for Women Cosplay](https://m.media-amazon.com/images/I/51y5ypB-hcL.jpg)**Tigeen 3 Pcs Halloween Costume Professor Nerd Dress up Costume Set Wig Halloween Movie Cosplay Punk Wig Thick Lens Nerd Glasses Blonde Long Curly Fluffy Hair Boho Wide Headbands for Women Cosplay**Tigeen**$19.18**24 rev3y ago](https://www.amazon.com/dp/B0C5HHXNN3) [![Plus Size Professor Trelawney Costume for Women - Deluxe Harry Potter Dress Skirt Vest Headband & Eyeglasses 1X](https://m.media-amazon.com/images/I/41qiNl9m4HL.jpg)**Plus Size Professor Trelawney Costume for Women - Deluxe Harry Potter Dress Skirt Vest Headband & Eyeglasses 1X**Fun Costumes**$130.97**15 rev3y ago](https://www.amazon.com/dp/B0BWPHJH2G)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Plus Size Professor Trelawney Costume for Women - Deluxe Harry Potter Dress Skirt Vest Headband & Eyeglasses 1X](https://m.media-amazon.com/images/I/41qiNl9m4HL.jpg)**Plus Size Professor Trelawney Costume for Women - Deluxe Harry Potter Dress Skirt Vest Headband & Eyeglasses 1X**Fun Costumes**$130.97**4.9★**▲ 425%**](https://www.amazon.com/dp/B0BWPHJH2G) [![JOEYOUNG Headwear Bandana Neck Gaiter Head Wrap Headband Balaclava Magic Scarf](https://m.media-amazon.com/images/I/61H4kd-L9PL.jpg)**JOEYOUNG Headwear Bandana Neck Gaiter Head Wrap Headband Balaclava Magic Scarf**JOEYOUNG**$12.38**4.4★**▲ 412%**](https://www.amazon.com/dp/B0B74HGMF5) [![elope Professor Trelawney Headscarf Kit Standard](https://m.media-amazon.com/images/I/41+62zTcWyL.jpg)**elope Professor Trelawney Headscarf Kit Standard**elope**$6.88**4.8★**▲ 325%**](https://www.amazon.com/dp/B0BS2FLKXV) [![Fun Costumes Deluxe Harry Potter Professor Trelawney Costume for Women with Dress Skirt Vest Headband and Eyeglasses Medium](https://m.media-amazon.com/images/I/41qiNl9m4HL.jpg)**Fun Costumes Deluxe Harry Potter Professor Trelawney Costume for Women with Dress Skirt Vest Headband and Eyeglasses Medium**Fun Costumes**$124.94**4.8★**▲ 263%**](https://www.amazon.com/dp/B0BWFT2R5D) [![Exotic India Long Printed Dori Skirt from Gujarat with Patch Work - Rayon - Color Beige](https://m.media-amazon.com/images/I/51l1VZLuf7L.jpg)**Exotic India Long Printed Dori Skirt from Gujarat with Patch Work - Rayon - Color Beige**Exotic India**$27.36**4.1★**▲ 120%**](https://www.amazon.com/dp/B009YYZ55I)

**~~View all trending →~~**

## **Demand**

Weekly Amazon search volume, last 36 weeks — -9.0% search growth over the last 90 days.

2K2KSpike '26Nov '25Dec '25Jan '26Mar '26Apr '26May '26

## **Reviews**

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

### **What buyers love **

**Comfort-Overall**13%

*“Very comfortable”*

**Advertised Vs Actual Product**13%

*“It is exactly as described”*

**Fun/Entertainment Experience**10%

*“Great fun product,”*

**Value For Money**8%

*“at a more affordable price”*

**Material Quality**7%

*“good material”*

**Color**6%

*“Love the colors”*

**Quality-Overall**6%

*“High quality”*

**Size-Overall**6%

*“The size is perfect”*

**Exercise/Sports Suitability**4%

*“Great for running and fitness activities”*

**Durability**3%

*“they last :”*

### **What buyers complain about **

**Size-Overall**35%

*“I admit to being short”*

**Material Quality**9%

*“Cheap plastic crap”*

**Stretchability/Expandability/Elasticity**8%

*“not stretchy enough”*

**Advertised Vs Actual Product**6%

*“Not true to image”*

**Quality-Overall**5%

*“Cheaply made”*

**Stitch/Finish/Polish**5%

*“No edge stitched into top and bottom”*

**Color**3%

*“not the same color as the image”*

**Print Quality**3%

*“no paisley print either”*

**Smell**3%

*“They smelled a bit when they first arrived”*

**Thigh Fit**3%

*“kind of tight on my hips even though it's the right size”*

### **Top return reasons **

**Size-Overall**28%

**Material Quality**11%

**Color**8%

**Waist Fit**8%

**Advertised Vs Actual Product**7%

**Length**7%

**Thin**5%

**Hip Fit**5%

**Shape/Style**3%

**Print Quality**3%