---
title: "Sanrio Costume — $4K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/sanrio-costume"
last_updated: "2026-08-10T21:42:05.740Z"
locale: en
meta:
description: "Niche score 42/100 · $4K/yr market · 84K searches/yr · $37.25 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · $4K/yr market · 84K searches/yr · $37.25 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Sanrio Costume — $4K/yr Amazon US Niche (2026) - Flapen"
---
# **sanrio costume**
**Skip it**
A small market ($4K/yr) — this niche doesn't clear our bar today.
Market size 1Growth 24Conversion 2Competition 84Returns 13Price range 81Avg price 95Brand share 77Review moat 82Quality gap 37
**Avg price**
**Incredible****$37.25**
avg listing price — sweet spot $15–$100
**Competition**
**Great****31%**
top-5 click share — an open shelf
**Review moat**
**Great****364.39**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Great****$8.91–$112.30**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Great****58%**
top-5 brand share — no brand owns this niche
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-2.8%**
90-day search growth — must beat 0% to launch
**Returns**
**Bad****8.3%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****0.1%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$4K**
$4K/yr · 84K searches
**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, sanrio costume is a $4K/yr Amazon United States market (84K searches/yr). The top 5 brands hold 58% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 42/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sanrio costume market data**
- **Units sold / yr**
- **100–250**
- avg 0–100/product
- **Revenue / yr**
- **$4K–$9K**
- units × avg price
- **Conversion rate**
- **0.1%**
- **Avg BSR**
- **#54,533**
- **Page quality**
- **0%**
- **Prime**
- **85%**
- **Sponsored**
- **80%**
- **Out of stock**
- **20.3%**
- **Avg brand age**
- **34 months**
- **Avg seller age**
- **169 days**
## **Competition & brand share**
Clicks spread well past the top 5 (31% combined) — an open shelf where new products get seen.
**Brands**
**32 **▲rising
**Sellers**
**53**
**Top-5 brand share**
**58%**
Top 20: 91%
**Top-5 click share**
**31%**
Top 20: 63%
**Open market**
**37%**
- Hello Kitty20% - SAZAC18% - Bioworld8% - MEOKIM7% - Touchat5% - COSUSKET5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -2.8% search growth over the last 90 days.
13K8KSpike '24Prime Day '25Spike '25 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 15.9×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/sanrio-costume/trend)
## **Top sanrio costume search terms**
- **cinnamoroll onesie**14K/yr-8.7%0.4% conv. - **kawaii onesie**10K/yr-15.9%0.0% conv. - **sanrio onesie**14K/yr-3.9%0.1% conv. - **sanrio costume**18K/yr+12.0%0.1% conv. - **cinnamoroll halloween costume**6K/yr+100.4%0.0% conv. - **cinnamoroll onesie kids**3K/yr+4.4%0.0% conv. - **cinnamon roll onesie**3K/yr-14.0%0.0% conv. - **sanrio onesie adult**5K/yr-39.3%0.0% conv. - **sanrio onesies**1K/yr+62.1%0.0% conv. - **sanrio halloween costume**4K/yr+190.7%0.0% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/sanrio-costume/search-terms)
## **Top sanrio 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%3%$1216%$2439%$36412%$4861101001K10K 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**SAZAC Kigurumi - Cinnamoroll - Onesie Jumpsuit Halloween Costume**SAZAC**$112.30**4.6★369 rev](https://www.amazon.com/dp/B01J2QRXYI) [2**Hello Kitty Sanrio One Piece Pajamas for Women Teens Kawaii Fleece Loungewear Soft Sleepwear Jumpsuit PJs Gifts for Women (2XL Pink)**Hello Kitty**$37.89**4.8★169 rev](https://www.amazon.com/dp/B0DQY4L3DL) [3**Womens Robe Button Bathrobe Womens Hoodie Coat Plush Warm Pajamas Long Sleepwear with Cute Pattern Pocket Pajamas (Cloud Dog XL)**MEOKIM**$32.81**4.6★219 rev](https://www.amazon.com/dp/B0BHN92KR3) [4**Touchat Shark Blanket Hoodie Onesie Wearable Blankets Hoodie Adult Warm Flannel Throw Blanket Tail Sleeping Bag Cartoon Costume Shark Onesie Funny Gifts for Adults (Pink M)**Touchat**$20.15**4.5★648 rev](https://www.amazon.com/dp/B0CYBGHX2R) [5**Bioworld Hello Kitty & Friends Hooded Hello Kitty Kigurumi Cosplay Onesie Costume Union Suit-XL Blue**Bioworld**$39.43**4.6★132 rev](https://www.amazon.com/dp/B0CHT4Y81R)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**ZITEZHGO Womens Cute Bow Bunny Onesie Pajamas Fluffy Coral Fleece Warm Cozy for Indoor Outdoor Lounging (White Medium)**ZITEZHGO**$36.27**5 rev9mo ago](https://www.amazon.com/dp/B0FWY6QNHJ) [**Hello Kitty Sanrio One Piece Pajamas for Women Teens Kawaii Fleece Loungewear Soft Sleepwear Jumpsuit PJs Gifts for Women (2XL Pink)**Hello Kitty**$37.89**169 rev11mo ago](https://www.amazon.com/dp/B0DQY4L3DL) [**Hello Kitty Sanrio One Piece Pajamas for Girls Teens Kawaii Loungewear Zip Up Sleepwear Jumpsuit Lounge PJs Gifts for Girls (9-10 Years Pink Hello Kitty)**Hello Kitty**$33.38**259 rev11mo ago](https://www.amazon.com/dp/B0DQY6WCSD) [**Hello Kitty Sanrio Robe for Women Teens Nightwear with Hood Pockets Kawaii Fleece Bathrobe Loungewear Gifts for Women (XL Blue Cinnamoroll)**Hello Kitty**$37.85**406 rev12mo ago](https://www.amazon.com/dp/B0F2W3HPWN) [**Hello Kitty Sanrio One Piece Pajamas for Women Teens Kawaii Fleece Loungewear Soft Sleepwear Jumpsuit PJs Gifts for Women (M Red)**Hello Kitty**$35.90**169 rev1y ago](https://www.amazon.com/dp/B0DBHJ48GT)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**ZITEZHGO Womens Cute Bow Bunny Onesie Pajamas Fluffy Coral Fleece Warm Cozy for Indoor Outdoor Lounging (White Medium)**ZITEZHGO**$36.27**4.1★**▲ 216%**](https://www.amazon.com/dp/B0FWY6QNHJ) [**Hello Kitty Sanrio One Piece Pajamas for Women Teens Kawaii Fleece Loungewear Soft Sleepwear Jumpsuit PJs Gifts for Women (2XL Pink)**Hello Kitty**$37.89**4.8★**▲ 212%**](https://www.amazon.com/dp/B0DQY4L3DL) [**Hello Kitty Sanrio One Piece Pajamas for Women Teens Kawaii Fleece Loungewear Soft Sleepwear Jumpsuit PJs Gifts for Women (S Red)**Hello Kitty**$35.47**4.8★**▲ 183%**](https://www.amazon.com/dp/B0DBHJQLND) [**QSTYLE Adult Animal Onesie Halloween Costume One Piece Cosplay Suit for Women and Men**QSTYLE**$21.37**4.5★**▲ 157%**](https://www.amazon.com/dp/B0B49VVDNJ) [**Hello Kitty Sanrio One Piece Pajamas for Women Teens Kawaii Fleece Loungewear Soft Sleepwear Jumpsuit PJs Gifts for Women (M Red)**Hello Kitty**$35.90**4.8★**▲ 153%**](https://www.amazon.com/dp/B0DBHJ48GT)
**~~View all trending →~~**
## **What buyers say about sanrio costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Warmth**19%
*“Definitely keeps u warm”*
**Comfort-Overall**17%
*“It is so comfortable”*
**Soft Feel**14%
*“The material itself is soft and cozy, and the design is really cute”*
**Size-Overall**13%
*“Fit perfect”*
**Gifting Purpose**5%
*“Perfect gift for anyone”*
**Quality-Overall**5%
*“The sweater quality wasnt bad though”*
**Value For Money**5%
*“Definitely worth the price”*
**Design-Overall**3%
*“Aesthetically pleasing”*
**Color**2%
*“Color is pretty”*
**Advertised Vs Actual Product**1%
*“Great just as shown”*
### **What buyers complain about **
**Size-Overall**25%
*“Size is a little big”*
**Quality-Overall**14%
*“Cheaply made — purchase 2 and both ripped”*
**Material Quality**8%
*“Material”*
**Durability**8%
*“Falling apart”*
**Advertised Vs Actual Product**6%
*“Looks nothing like the picture, is thin and flimsy not plush like the picture”*
**Stitch/Finish/Polish**4%
*“There were several places on the seams that I had to sew together because they had either ripped apart or did not get sewn”*
**Value For Money**2%
*“its not worth 33 bucks”*
**Sleeve Fit**1%
*“Sleeves were too short etc”*
**Gap/Hole**1%
*“Arrived with a hole”*
**Ease Of Cleaning**1%
*“Dirty”*
### **Top return reasons **
**Size-Overall**61%
**Length**7%
**Advertised Vs Actual Product**5%
**Material Quality**4%
**Color**2%
**Stitch/Finish/Polish**2%
**Thin**2%
**Sleeve Fit**1%
**Chest Fit**1%
**Thigh Fit**1%
## **Common questions**
- **Is sanrio costume profitable to sell on Amazon United States?**
- The niche generates $4K/yr across 66 tracked products. 1 of 15 products launched in the last 360 days are still selling. 90-day search growth is -2.8%. Flapen's verdict: Skip it (42/100).
- **How competitive is the sanrio costume niche?**
- 32 brands and 53 sellers compete. The top 5 products take 31% of clicks and top 5 brands hold 58% of demand.
- **What do buyers complain about in sanrio costume?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Material Quality. The return rate is 8.3% — above our launch gate.
- **When does demand for sanrio costume peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 15.9× the quietest.
- **What does it cost to enter the sanrio costume niche?**
- Listings span $8.91–$112.30; the average listing price is $37.25 (sweet spot $15–$100). The average incumbent carries 364 reviews — the moat a new listing must climb.
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