---
title: "Overnight — $116K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/overnight"
last_updated: "2026-08-11T23:51:55.571Z"
locale: en
meta:
description: "Niche score 39/100 · $116K/yr market · 547K searches/yr · $16.46 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · $116K/yr market · 547K searches/yr · $16.46 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Overnight — $116K/yr Amazon US Niche (2026) - Flapen"
---
# **overnight**
**Skip it**
A deep review moat (27,054 avg reviews) — this niche doesn't clear our bar today.
Market size 27Growth 20Conversion 16Competition 26Returns 97Price range 75Avg price 79Brand share 53Review moat 12Quality gap 35
**Returns**
**Incredible****0.5%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$16.46**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$4.06–$47.66**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****73%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$116K**
$116K/yr · 547K searches
**Competition**
**Okay****69%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Bad****-10.2%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****1.3%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Bad****27,053.83**
avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, overnight is a $116K/yr Amazon United States market (547K searches/yr). The top 5 brands hold 73% of demand. Demand peaks in Jan–Feb–Dec. Verdict: Skip it — 39/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **overnight market data**
- **Units sold / yr**
- **8K–10K**
- avg 250–500/product
- **Revenue / yr**
- **$132K–$165K**
- units × avg price
- **Conversion rate**
- **1.3%**
- **Avg BSR**
- **#28**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **89%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **130 days**
## **Competition & brand share**
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**17 **▲rising
**Sellers**
**560**
**Top-5 brand share**
**73%**
Top 20: 100%
**Top-5 click share**
**69%**
Top 20: 100%
**Open market**
**24%**
- HOTOR26% - TheraBreath23% - TANSTC17% - eos4% - Gwabee4% - Dr. Scholl's3%
## **Demand & seasonality**
Weekly Amazon search volume, last 93 weeks — -10.2% search growth over the last 90 days.
23K18KHoliday '24Spike '25Prime Day '25Holiday '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Jan, Feb, Dec · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/health-household/overnight/trend)
## **Top overnight search terms**
- **overnight**502K/yr-10.5%0.6% conv. - **over night**19K/yr+2.1%1.1% conv. - **therabreath overnight mouthwash**7K/yr-23.4%12.6% conv. - **therabreath mouthwash overnight**5K/yr-27.9%14.5% conv. - **therabreath overnight**4K/yr-15.3%10.0% conv. - **overnigh**4K/yr+40.4%0.1% conv. - **over ight**3K/yr+14.3%1.5% conv. - **overnight mouthwash**3K/yr-25.9%7.9% conv. [**All search terms **](https://flapen.com/research/us/health-household/overnight/search-terms)
## **Top overnight 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%10%$12K20%$23K30%$35K40%$46K1001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 18 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**HOTOR Travel Duffel Bag - Weekender Bags for Women Gym Tote Bags with Shoe Compartment Carry On Overnight Bag with Toiletry Bag for Travel Essentials and Travel Accessories Black 13.417.37.9**HOTOR**$15.52**4.6★1,536 rev](https://www.amazon.com/dp/B0DK9DCC9J) [2**TheraBreath Overnight Mouthwash Fights Bad Breath for 12 Hours Chamomile Mint Flavor Dentist Formulated Fluoride Rinse Alcohol Free 16 fl oz (Pack of 2)**TheraBreath**$17.14**4.7★1,575 rev](https://www.amazon.com/dp/B0CB1WJRHW) [3**TANSTC Overnight Menstrual Underwear Women Heavy Flow Leakproof Cotton Hipster Briefs 3 Pack Dark Color L**TANSTC**$24.43**4.1★3,003 rev](https://www.amazon.com/dp/B0DDTMRLDN) [4**TheraBreath AM + PM Mouthwash Bundle 16 fl oz 2-Pack**TheraBreath**$16.07**4.8★268 rev](https://www.amazon.com/dp/B0GJ2XMF9Q) [5**eos The Hero Lip Repair Extra Dry Lip Treatment 24HR Moisture Overnight Lip Treatment Natural Strawberry Extract 0.35 fl oz**eos**$4.06**4.6★8,506 rev](https://www.amazon.com/dp/B08C8Y26LL)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**TheraBreath AM + PM Mouthwash Bundle 16 fl oz 2-Pack**TheraBreath**$16.07**268 rev5mo ago](https://www.amazon.com/dp/B0GJ2XMF9Q) [**Travel Weekender Bags for Women - Duffle Bag Women with Shoe Compartment Carry On Overnight Bag with Toiletry Bag Duffel Bags with Wet Pocket for Gym Hospital Bags for Labor and Delivery Pink**Focdod**$25.25**423 rev1y ago](https://www.amazon.com/dp/B0DSL363JV) [**HOTOR Travel Duffel Bag - Weekender Bags for Women Gym Tote Bags with Shoe Compartment Carry On Overnight Bag with Toiletry Bag for Travel Essentials and Travel Accessories Black 13.417.37.9**HOTOR**$15.52**1,536 rev1y ago](https://www.amazon.com/dp/B0DK9DCC9J) [**4 Pack Overnight Oats Containers with Lids and Spoons 16 oz Glass Mason Jars with Airtight Lids Overnight Oats Jars for Milk Cereal Fruit**LANDNEOO**$19.63**3,299 rev1y ago](https://www.amazon.com/dp/B0DHXSFDXL) [**TANSTC Overnight Menstrual Underwear Women Heavy Flow Leakproof Cotton Hipster Briefs 3 Pack Dark Color L**TANSTC**$24.43**3,003 rev1y ago](https://www.amazon.com/dp/B0DDTMRLDN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**HOTOR Travel Duffel Bag - Weekender Bags for Women Gym Tote Bags with Shoe Compartment Carry On Overnight Bag with Toiletry Bag for Travel Essentials and Travel Accessories Black 13.417.37.9**HOTOR**$15.52**4.6★**▲ 305%**](https://www.amazon.com/dp/B0DK9DCC9J) [**TANSTC Overnight Menstrual Underwear Women Heavy Flow Leakproof Cotton Hipster Briefs 3 Pack Dark Color L**TANSTC**$24.43**4.1★**▲ 294%**](https://www.amazon.com/dp/B0DDTMRLDN) [**Bambody Absorbent Period Panties - Bamboo Rayon - Period Underwear for Women and Teens - All-Day Long - Overnight Protection- Leakproof - Large - 3 Pack: Black**Bambody**$34.35**4.4★**▲ 270%**](https://www.amazon.com/dp/B0BNP9M6WV) [**Travel Weekender Bags for Women - Duffle Bag Women with Shoe Compartment Carry On Overnight Bag with Toiletry Bag Duffel Bags with Wet Pocket for Gym Hospital Bags for Labor and Delivery Pink**Focdod**$25.25**4.8★**▲ 250%**](https://www.amazon.com/dp/B0DSL363JV) [**Wildroad Waxed Canvas Duffle Bag - 50L Waterproof Weekender Overnight Travel Bag**Wildroad**$47.66**4.7★**▲ 198%**](https://www.amazon.com/dp/B0B8271YDK)
**~~View all trending →~~**
## **What buyers say about overnight**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**10%
*“Great quality the prices is affordable —I recommend this product”*
**Moist/Dry**10%
*“Super hydrating”*
**Soft Feel**8%
*“And soft”*
**Suitability Combination Skin**7%
*“Good for my sensitive skin”*
**Value For Money**7%
*“They are affordable”*
**Suitability Dry Skin**4%
*“It definitely works extremely well for dry skin”*
**Ease Of Use**4%
*“easy to carry”*
**Taste-Overall**4%
*“Always delicious”*
**Advertised Vs Actual Product**3%
*“As advertised”*
**Brightness/Shine/Glow**3%
*“Glowing Skin”*
### **What buyers complain about **
**Allergies**6%
*“ALLERGIC REACTION”*
**Size-Overall**5%
*“They are small”*
**Value For Money**5%
*“Too expensive”*
**Durability**5%
*“breaks apart”*
**Moist/Dry**5%
*“Wipes are barely moist”*
**Functionality-Overall**5%
*“Did not work”*
**Ease Of Use**4%
*“Difficult to use”*
**Stain Resistance**4%
*“Baby stains”*
**Quality-Overall**4%
*“Poor quality control”*
**Thickness**3%
*“It is thicker starting out”*
### **Top return reasons **
**Functionality-Overall**15%
**Size-Overall**14%
**Value For Money**10%
**Advertised Vs Actual Product**10%
**Leak-Proof**4%
**Adhesion/Stickiness**4%
**Moist/Dry**4%
**Defective Material/Parts**3%
**Skin Health**3%
**Stain Resistance**2%
## **Common questions**
- **Is overnight profitable to sell on Amazon United States?**
- The niche generates $116K/yr across 18 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -10.2%. Flapen's verdict: Skip it (39/100).
- **How competitive is the overnight niche?**
- 17 brands and 560 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 73% of demand.
- **What do buyers complain about in overnight?**
- Top complaints mined from reviews: Allergies, Size-Overall, Value For Money. The return rate is 0.5%.
- **When does demand for overnight peak?**
- Demand peaks in Jan–Feb–Dec; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the overnight niche?**
- Listings span $4.06–$47.66; the average listing price is $16.46 (sweet spot $15–$100). The average incumbent carries 27,054 reviews — the moat a new listing must climb.
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