---
title: "Sanrio Birthday Decorations — $105K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/sanrio-birthday-decorations"
last_updated: "2026-08-07T21:33:01.680Z"
locale: en
meta:
description: "Niche score 53/100 · $105K/yr market · 316K searches/yr · $18.22 avg price. Weak search conversion (1.8%) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · $105K/yr market · 316K searches/yr · $18.22 avg price. Weak search conversion (1.8%) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Sanrio Birthday Decorations — $105K/yr Amazon US Niche (2026) - Flapen"
---
# **sanrio birthday decorations**
**Worth a look**
Shows a thin review moat (143 avg reviews), but weak search conversion (1.8%) keeps it on the watch list.
Market size 26Growth 29Conversion 23Competition 78Returns 85Price range 60Avg price 83Brand share 83Review moat 93Quality gap 24
**Review moat**
**Great****143.13**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Great****1.5%**
return rate — above 5% kills the launch gate
**Brand share**
**Great****52%**
top-5 brand share — no brand owns this niche
**Avg price**
**Great****$18.22**
avg listing price — sweet spot $15–$100
**Competition**
**Great****37%**
top-5 click share — an open shelf
**Price range**
**Good****$4.97–$29.87**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Okay****+3.6%**
90-day search growth — must beat 0% to launch
**Market size**
**Okay****$105K**
$105K/yr · 316K searches
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Bad****1.8%**
search→purchase rate — share of searches ending in a sale
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, sanrio birthday decorations is a $105K/yr Amazon United States market (316K searches/yr). The top 5 brands hold 52% of demand. Demand peaks in Aug–Sep. Verdict: Worth a look — 53/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sanrio birthday decorations market data**
- **Units sold / yr**
- **6K–8K**
- avg 0–100/product
- **Revenue / yr**
- **$109K–$146K**
- units × avg price
- **Conversion rate**
- **1.8%**
- **Avg BSR**
- **#2,307**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **69%**
- **Out of stock**
- **20.2%**
- **Avg brand age**
- **25 months**
- **Avg seller age**
- **145 days**
## **Competition & brand share**
Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.
**Brands**
**30 **▼falling
**Sellers**
**63**
**Top-5 brand share**
**52%**
Top 20: 91%
**Top-5 click share**
**37%**
Top 20: 75%
**Open market**
**44%**
- MLEDUY18% - BNFUO12% - PINUO12% - Lamden6% - Unique5% - Signreen5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +3.6% search growth over the last 90 days.
15K10KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Sep · busiest ÷ quietest = 2.2×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/sanrio-birthday-decorations/trend)
## **Top sanrio birthday decorations search terms**
- **hello kitty and friends birthday decorations**104K/yr+6.7%0.9% conv. - **sanrio birthday decorations**95K/yr+0.1%1.1% conv. - **kawaii birthday decorations**29K/yr+18.6%0.6% conv. - **sanrio party decorations**19K/yr+1.7%1.4% conv. - **sanrio birthday**16K/yr-8.7%0.6% conv. - **kawaii party decorations**8K/yr-0.4%0.6% conv. - **hello kitty and friends party decorations**8K/yr+6.2%1.6% conv. - **sanrio party**7K/yr-4.2%0.6% conv. - **hello kitty and friends birthday**7K/yr+1.9%0.8% conv. - **kawaii decorations**5K/yr+27.8%0.4% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/sanrio-birthday-decorations/search-terms)
## **Top sanrio birthday decorations 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%$3K6%$6K9%$9K12%$13K1101001K10K 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**Kawaii Birthday Party Decorations Cute Cartoon Party Supplies - Banner Balloons Tablecloth Paper Tableware Backdrop Hanging Swirl for Adult Birthday Decor**MLEDUY**$23.77**4.4★13 rev](https://www.amazon.com/dp/B0GY3MZXG2) [2**Kawaii and Friends Birthday Decorations Kawaii and Friends Backdrops for Party Decorations Supplies Happy Birthday Banner Backdrop for Party Supplies (5x3ft)**PINUO**$10.84**4.8★9 rev](https://www.amazon.com/dp/B0G1LCGVPH) [3**10 Pcs Kawaii Cartoon Porch Sign Birthday Party Supplies**MLEDUY**$10.01**4.6★47 rev](https://www.amazon.com/dp/B0FJDHLSC6) [4**Keroppi Kitty Melody Birthday Party Supplies Kawaii Party Tableware with Happy Birthday Banner Tablecloth Disposable Paper Plates with Napkins for Fans Party Decorations Serves 20 Guests**Lamden**$23.24**4.6★36 rev](https://www.amazon.com/dp/B0CWW1RKHZ) [5**Kawaii and Friends Birthday Decorations Kawaii and Friends Party Supplies Include Happy Birthday Banner Cake Topper and Cupcake Toppers Balloons for Kids Party Decor**BNFUO**$17.10**4.7★17 rev](https://www.amazon.com/dp/B0FK3FCKZB)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Kawaii Cartoon Theme Birthday Decorations And Party Supplies Include: Birthday Banner Backdrop Hanging Swirls Balloons Cupcake Toppers Tablecloth.**Generic**$15.98**1 rev2mo ago](https://www.amazon.com/dp/B0GZZ2R6SN) [**Kawaii Birthday Party Decorations Cute Cartoon Party Supplies - Banner Balloons Tablecloth Paper Tableware Backdrop Hanging Swirl for Adult Birthday Decor**MLEDUY**$23.77**13 rev3mo ago](https://www.amazon.com/dp/B0GY3MZXG2) [**Kawaii Pink Birthday Decorations Pack Set for Themed Celebration**Signreen**$18.55**1 rev3mo ago](https://www.amazon.com/dp/B0GY4NP75M) [**49Pcs - Kitty Birthday Party Decorations Set Pink Theme with Banner Balloons Tablecloth Cake Toppers.**Celunhasev**$20.87**39 rev3mo ago](https://www.amazon.com/dp/B0GVT57ZNL) [**Cinnamoroll Birthday Decorations 101PCS Party Supplies Set Include Banner Balloons Stickers Hanging Swirls Cake Cupcake Toppers Tablecloth for Kids Cinnamoroll Theme Party**AVONO**$20.79**50 rev5mo ago](https://www.amazon.com/dp/B0GJRBH26Q)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Kawaii Cartoon Theme Birthday Decorations And Party Supplies Include: Birthday Banner Backdrop Hanging Swirls Balloons Cupcake Toppers Tablecloth.**Generic**$15.98**1.0★**▲ 219%**](https://www.amazon.com/dp/B0GZZ2R6SN) [**Kawaii Birthday Party Decorations Cute Cartoon Party Supplies - Banner Balloons Tablecloth Paper Tableware Backdrop Hanging Swirl for Adult Birthday Decor**MLEDUY**$23.77**4.4★**▲ 216%**](https://www.amazon.com/dp/B0GY3MZXG2) [**Kawaii Pink Birthday Decorations Pack Set for Themed Celebration**Signreen**$18.55**5.0★**▲ 215%**](https://www.amazon.com/dp/B0GY4NP75M) [**Cartoon Birthday Party Decorations Supplies Party Supplies Kit Include Birthday Banner Foil Balloons Backdrop Tablecloth Hanging Swirls for Adult Birthday Party**Signreen**$19.01**0.0★**▲ 213%**](https://www.amazon.com/dp/B0H1BTBQG9) [**Kitty and Friends Happy Birthday Backdrop Kawaii and Friends Banner Poster for Boys Girls Theme Party Decorations Cartoon Anime Birthday Supplies Background Studio Shoot Photo Props Booth**Generic**$13.33**5.0★**▲ 188%**](https://www.amazon.com/dp/B0GG9QZ8TJ)
**~~View all trending →~~**
## **What buyers say about sanrio birthday decorations**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**24%
*“The bags are a good quality -”*
**Value For Money**15%
*“GREAT PRICE”*
**Advertised Vs Actual Product**14%
*“Just what I needed”*
**Color**6%
*“Cute colors”*
**Design-Overall**6%
*“Cute aesthetic”*
**Size-Overall**4%
*“Great size”*
**Fun/Entertainment Experience**4%
*“kids loved it”*
**Gifting Purpose**3%
*“Perfect for birthday gift bags”*
**Durability**3%
*“I love that they are durable”*
**Assembly/Installation**2%
*“Easy to assemble”*
### **What buyers complain about **
**Quality-Overall**17%
*“However, the pins are extremely low quality”*
**Size-Overall**15%
*“Balloons are big”*
**Advertised Vs Actual Product**9%
*“Not as advertised”*
**Value For Money**6%
*“Underwhelming for the price”*
**Smell**5%
*“The plates were open and vent, the banner had ink smeared all over it, the balloons smelled toxic”*
**Adhesion/Stickiness**4%
*“Recommend for indoor when its windy they rip easily an didnt stick how they are suppose to”*
**Thickness**4%
*“The cardstock cake topper isn't thick”*
**Assembly/Installation**4%
*“- the banner is not pre assembled”*
**Durability**3%
*“They fell apart”*
**Taste-Overall**2%
*“Not so yummy”*
### **Top return reasons **
**Size-Overall**31%
**Value For Money**22%
**Advertised Vs Actual Product**15%
**Quality-Overall**6%
**Color**5%
**Defective Material/Parts**3%
**Design-Overall**2%
**Adhesion/Stickiness**2%
**Product Condition**2%
**Material Quality**1%
## **Common questions**
- **Is sanrio birthday decorations profitable to sell on Amazon United States?**
- The niche generates $105K/yr across 45 tracked products. 6 of 15 products launched in the last 360 days are still selling. 90-day search growth is +3.6%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the sanrio birthday decorations niche?**
- 30 brands and 63 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 52% of demand.
- **What do buyers complain about in sanrio birthday decorations?**
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Advertised Vs Actual Product. The return rate is 1.5%.
- **When does demand for sanrio birthday decorations peak?**
- Demand peaks in Aug–Sep; the busiest month runs 2.2× the quietest.
- **What does it cost to enter the sanrio birthday decorations niche?**
- Listings span $4.97–$29.87; the average listing price is $18.22 (sweet spot $15–$100). The average incumbent carries 143 reviews — the moat a new listing must climb.
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