---
title: "Nighttime Underwear for Girls — Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/nighttime-underwear-for-girls"
last_updated: "2026-08-12T10:32:06.030Z"
locale: en
meta:
description: "Amazon product research for nighttime underwear for girls: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for nighttime underwear for girls: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Nighttime Underwear for Girls — Amazon US Product Research"
---
# **Nighttime Underwear for Girls**
**Worth a look**
Shows low returns (0.7%), but brand-locked demand (top 5 brands take 92% of clicks) keeps it on the watch list.
Market size 28Growth 59Conversion 91Competition 33Returns 96Price range 86Avg price 95Brand share 21Review moat 25Quality gap 45
**Returns**
**Incredible****0.7%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$28.62**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****10.9%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****$9.55–$58.99**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Good****+34.6%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Competition**
**Okay****65%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$121K**
$121K/yr · 39K searches
**Review moat**
**Bad****4,213.35**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Bad****92%**
top-5 brand share — brand-locked demand
## **Is nighttime underwear for girls profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, nighttime underwear for girls is a $121K/yr Amazon United States market (39K searches/yr). The top 5 brands hold 92% of demand. Demand peaks in Jun. Verdict: Worth a look — 54/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **nighttime underwear for girls market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **2K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$43K–$57K**
- units × avg price
- **Conversion rate**
- **10.9%**
- **Avg BSR**
- **#163**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **82%**
- **Out of stock**
- **1.0%**
- **Avg brand age**
- **35 months**
- **Avg seller age**
- **120 days**
## **Competition: brands, sellers & click share**
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**9 **▲rising
**Sellers**
**35**
**Top-5 brand share**
**92%**
Top 20: 100%
**Top-5 click share**
**65%**
Top 20: 100%
**Open market**
**5%**
- Ninjamas55% - Linzama13% - FUVVRVAL8% - GoodNites8% - Hupohoi7% - Little Sleepies3% - Open — no brand owns it (3 brands, 5%)
## **nighttime underwear for girls demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +34.6% search growth over the last 90 days.
5K3KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun · busiest ÷ quietest = 2.6×
[**Open Trend **](https://flapen.com/research/us/health-household/nighttime-underwear-for-girls/trend)
## **Top nighttime underwear for girls search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **ninjamas girls lxl**16K/yr+37.1%0.1% conv. - **ninjamas girls xl**13K/yr+38.4%1.3% conv. - **ninjamas girls l/xl**10K/yr+21.7%14.8% conv. [**All search terms **](https://flapen.com/research/us/health-household/nighttime-underwear-for-girls/search-terms)
## **Top nighttime underwear for girls products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$12K20%$24K30%$36K40%$48K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Ninjamas Girls Bedwetting Nighttime Underwear Pampers Pull Ups Size L (64-95+ lbs) 68 Count Overnight Underwear Kids Ultra Absorbent Hypoallergenic**Ninjamas**$50.76**4.6★8,121 rev](https://www.amazon.com/dp/B0D325FTR7) [2**Ninjamas Girls Bedwetting Nighttime Underwear Size L (64-95+ lbs) 34 Count Overnight Protection Ultra Absorbent Hypoallergenic**Ninjamas**$26.39**4.6★8,121 rev](https://www.amazon.com/dp/B08871BFR1) [3**FUVVRVAL Girls Incontinence Briefs Leakproof Bedwetting Underwear Kids**FUVVRVAL**$32.11**3.9★37 rev](https://www.amazon.com/dp/B0GKG74N9J) [4**Ninjamas Girls Bedwetting Nighttime Underwear - Size L (64-95+ lbs) 11 Count Overnight Protection Ultra Absorbent Hypoallergenic**Ninjamas**$9.55**4.6★8,121 rev](https://www.amazon.com/dp/B08871M9PN) [5**Linzama Teen Girls Incontinence UnderwearHolds Up to Regular 10 Tampons Leakproof Period ViscoseReusable Size 11-12year**Linzama**$19.33**4.2★32 rev](https://www.amazon.com/dp/B0DTJW9NLW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**FUVVRVAL Girls Incontinence Briefs Leakproof Bedwetting Underwear Kids**FUVVRVAL**$32.11**37 rev4mo ago](https://www.amazon.com/dp/B0GKG74N9J) [**Sanguanlun Leakproof Underwear for Teens 4-Pack Day & Night Set Seamless Leakproof Panties for Girls Heavy Flow Protection. Pink**Sanguanlun**$20.75**11 rev8mo ago](https://www.amazon.com/dp/B0G2BXFJP1) [**Little Sleepies Two-Piece Pajama Set for Boys & Girls Soft Viscose from Bamboo Toddler Pajamas for Kids Family Matching PJs Butterfly Kisses 12-14**Little Sleepies**$37.87**1,148 rev1y ago](https://www.amazon.com/dp/B0DZ75N65T) [**Linzama Teen Girls Incontinence UnderwearHolds Up to Regular 10 Tampons Leakproof Period ViscoseReusable Size 11-12year**Linzama**$19.33**32 rev1y ago](https://www.amazon.com/dp/B0DTJW9NLW) [**Linzama Teen Girls Incontinence UnderwearHolds Up to Regular 10 Tampons Leakproof Period ViscoseReusable Size 13-14year**Linzama**$19.13**32 rev1y ago](https://www.amazon.com/dp/B0DTJW9SQ2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Sanguanlun Leakproof Underwear for Teens 4-Pack Day & Night Set Seamless Leakproof Panties for Girls Heavy Flow Protection. Pink**Sanguanlun**$20.75**3.9★**▲ 256%**](https://www.amazon.com/dp/B0G2BXFJP1) [**Hupohoi Girls Pajama Sets Summer Short Sleeve With Shorts & Pants Sleepwear**Hupohoi**$20.44**4.7★**▲ 255%**](https://www.amazon.com/dp/B0D1GPHJYC) [**US Angels Girls Pajamas Set - 3-Piece PJs Set Tank Pants & Shorts Soft Girls Sleepwear Teen Kids Pajamas Size 5-16**US Angels**$22.19**4.6★**▲ 254%**](https://www.amazon.com/dp/B0DS24YWW3) [**BTween Girls 3 Pack Velour Jogger Pant Set Solid Tie Dye or Camo Sweatpants for Girls TDYE 6**BTween**$29.40**4.7★**▲ 253%**](https://www.amazon.com/dp/B0D2PKTKST) [**Little Sleepies Two-Piece Pajama Set for Boys & Girls Soft Viscose from Bamboo Toddler Pajamas for Kids Family Matching PJs Butterfly Kisses 12-14**Little Sleepies**$37.87**4.7★**▲ 252%**](https://www.amazon.com/dp/B0DZ75N65T)
**~~View all trending →~~**
## **What reviews say buyers love and hate about nighttime underwear for girls**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Comfort-Overall**15%
*“They are comfortable”*
**Size-Overall**11%
*“Fits great”*
**Leak-Proof**9%
*“it doesnt leak”*
**Absorbency**9%
*“They absorb so much”*
**Soft Feel**7%
*“overall theyre comfortable soft”*
**Durability**6%
*“Item held up perfectly”*
**Product Condition**6%
*“they look as new as they came”*
**Washability**6%
*“and have held up nicely through multiple washes”*
**Material Quality**4%
*“The cotton fabric is incredibly soft and breathable, making them comfortable enough for all-day wear at school or sports without feeling bulky like traditional pads”*
**Ease Of Use**4%
*“Its easy to use”*
### **What buyers complain about **
**Leak-Proof**25%
*“Leaks”*
**Smell**23%
*“Heavy perfume”*
**Allergies**17%
*“Rash”*
**Absorbency**11%
*“They just do not absorb that much at all”*
**Value For Money**1%
*“The value could be a bit better for the price range”*
### **Top return reasons **
**Size-Overall**71%
**Advertised Vs Actual Product**6%
**Leak-Proof**6%
**Smell**3%
**Age Suitability**2%
**Value For Money**2%
**Absorbency**2%
**Functionality-Overall**1%
**Material Quality**1%
**Waist Fit**1%
## **Common nighttime underwear for girls questions**
- **Is nighttime underwear for girls profitable to sell on Amazon United States?**
- The niche generates $121K/yr across 17 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +34.6%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the nighttime underwear for girls niche?**
- 9 brands and 35 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 92% of demand.
- **What do buyers complain about in nighttime underwear for girls?**
- Top complaints mined from reviews: Leak-Proof, Smell, Allergies. The return rate is 0.7%.
- **When does demand for nighttime underwear for girls peak?**
- Demand peaks in Jun; the busiest month runs 2.6× the quietest.
- **What does it cost to enter the nighttime underwear for girls niche?**
- Listings span $9.55–$58.99; the average listing price is $28.62 (sweet spot $15–$100). The average incumbent carries 4,213 reviews — the moat a new listing must climb.
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