---
title: "Overnight Diapers Size 6 — $829K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/baby-products/overnight-diapers-size-6"
last_updated: "2026-08-09T11:53:46.723Z"
locale: en
meta:
description: "Niche score 61/100 · $829K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 61/100 · $829K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Overnight Diapers Size 6 — $829K/yr Amazon US Niche (2026) - Flapen"
---
# **overnight diapers size 6**
**Worth a look**
Shows searches that convert (13.7% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 74Growth 22Conversion 96Competition 56Returns 96Price range 87Avg price 95Brand share 29Review moat 20Quality gap 55
**Conversion**
**Incredible****13.7%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.8%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$35.73**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.86–$60.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$829K**
$829K/yr · 170K searches
**Competition**
**Good****52%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****88%**
top-5 brand share — brands hold most of the demand
**Growth**
**Bad****-5.9%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****13,111.83**
avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, overnight diapers size 6 is a $829K/yr Amazon United States market (170K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Feb–Mar–Apr–May–Jun. Verdict: Worth a look — 61/100.
Data updated Jul 12, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **overnight diapers size 6 market data**
- **Units sold / yr**
- **20K–25K**
- avg 750–1,000/product
- **Revenue / yr**
- **$715K–$893K**
- units × avg price
- **Conversion rate**
- **13.7%**
- **Avg BSR**
- **#25**
- **Page quality**
- **0%**
- **Prime**
- **96%**
- **Sponsored**
- **87%**
- **Out of stock**
- **0.8%**
- **Avg brand age**
- **62 months**
- **Avg seller age**
- **141 days**
## **Competition & brand share**
The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**10 **▼falling
**Sellers**
**36**
**Top-5 brand share**
**88%**
Top 20: 100%
**Top-5 click share**
**52%**
Top 20: 97%
**Open market**
**8%**
- GoodNites32% - Pull-Ups27% - Ninjamas13% - Mama Bear9% - Inspire8% - Pura4% - Open — no brand owns it (4 brands, 8%)
## **Demand & seasonality**
Weekly Amazon search volume, last 102 weeks — -5.9% search growth over the last 90 days.
35K25KHoliday '24Spike '25 seasonDecMarJunAugNovMarMay
Peak months: Feb, Mar, Apr, May, Jun · busiest ÷ quietest = 4.8×
[**Open Trend **](https://flapen.com/research/us/baby-products/overnight-diapers-size-6/trend)
## **Top overnight diapers size 6 search terms**
- **overnight diapers size 6**79K/yr-7.1%0.4% conv. - **night diapers size 6**29K/yr-8.9%0.8% conv. - **nighttime diapers size 6**23K/yr-4.5%0.3% conv. - **size 6 overnight diapers**16K/yr+4.1%0.4% conv. - **size 6 nighttime diaper**7K/yr+16.4%0.6% conv. - **night time diapers size 6**9K/yr-27.2%0.5% conv. - **sleep diapers size 6**3K/yr+30.4%0.5% conv. - **size 6 diapers overnight**4K/yr-15.3%0.7% conv. [**All search terms **](https://flapen.com/research/us/baby-products/overnight-diapers-size-6/search-terms)
## **Top overnight diapers size 6 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%4%$33K8%$66K12%$99K16%$133K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Goodnites Boys Nighttime Bedwetting Underwear Size S/M (43-68 lbs) 44 Ct (2 Packs of 22) Packaging May Vary**GoodNites**$28.20**4.8★28,354 rev](https://www.amazon.com/dp/B00U0NRI0W) [2**Ninjamas Boys Bedwetting Nighttime Underwear Size S/M (38-70 lbs) 88 Count Overnight Protection Ultra Absorbent Hypoallergenic**Ninjamas**$50.50**4.5★13,580 rev](https://www.amazon.com/dp/B0B7VW2KRC) [3**Amazon Brand - Mama Bear Gentle Touch Baby Diapers Size 6 108 Count (4 Packs of 27) Hypoallergenic Wetness Indicator**Mama Bear**$31.13**4.2★60,652 rev](https://www.amazon.com/dp/B07SXBZQCG) [4**Dimples Booster Pads Baby Diaper Doubler Inserts with Adhesive - 1 Size Fits All Diapers - Boosts Absorbency - No More leaks for Overnight Travel Nighttime or Anytime 21 Count**Inspire**$9.86**4.4★287 rev](https://www.amazon.com/dp/B0CBQQKMS2) [5**Goodnites Nighttime Bedwetting Underwear Boys XS (28-43 lb.) 99 Ct (3 Packs of 33) Packaging May Vary**GoodNites**$59.41**4.8★28,354 rev](https://www.amazon.com/dp/B0977HSB5Z)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Pampers Amore Size 6 (23-44 lbs) 42 Count Our Best Diaper Hypoallergenic & Fragrance Free Up to 100% Leakproof Soft as Cashmere**Pampers**$25.74**450 rev6mo ago](https://www.amazon.com/dp/B0FXYH85KY) [**Pull-Ups Boys Night-Time Potty Training Pants Size 4T-5T Overnight Training Underwear (38-50 lbs) 92 Ct**Pull-Ups**$48.72**11,205 rev8mo ago](https://www.amazon.com/dp/B0FRQLHBF4) [**Pull-Ups Girls Night-Time Potty Training Pants Size 4T-5T Overnight Training Underwear (38-50 lbs) 92 Ct**Pull-Ups**$48.54**7,935 rev8mo ago](https://www.amazon.com/dp/B0FRQ7M74G) [**Pull-Ups Boys Night-Time Potty Training Pants Size 2T-3T Overnight Training Underwear (16-34 lbs) 120 Ct**Pull-Ups**$48.15**11,205 rev8mo ago](https://www.amazon.com/dp/B0FRJ3ZXY2) [**Pull-Ups Boys Night-Time Potty Training Pants Size 5T-6T Overnight Training Underwear (46-60 lbs) 80 Ct**Pull-Ups**$51.52**11,205 rev8mo ago](https://www.amazon.com/dp/B0FRQ73PJP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Pull-Ups Girls Night-Time Potty Training Pants Size 4T-5T Overnight Training Underwear (38-50 lbs) 92 Ct**Pull-Ups**$48.54**4.8★**▲ 305%**](https://www.amazon.com/dp/B0FRQ7M74G) [**Pull-Ups Boys Night-Time Potty Training Pants Size 4T-5T Overnight Training Underwear (38-50 lbs) 92 Ct**Pull-Ups**$48.72**4.7★**▲ 291%**](https://www.amazon.com/dp/B0FRQLHBF4) [**Pull-Ups Boys Night-Time Potty Training Pants Size 2T-3T Overnight Training Underwear (16-34 lbs) 120 Ct**Pull-Ups**$48.15**4.7★**▲ 229%**](https://www.amazon.com/dp/B0FRJ3ZXY2) [**Sposie Diaper Booster Pads Size 4-6 30 Count - Hypoallergenic Dermatologist and Pediatrician Tested Fragrance Latex Chemical and Cruelty-Free Made in USA**Select Kids**$17.67**4.6★**▲ 198%**](https://www.amazon.com/dp/B00839749A) [**Pull-Ups Girls Nighttime Potty Training Pants Training Underwear 3T-4T (32-40 lbs) 60 Ct**Pull-Ups**$27.84**4.8★**▲ 113%**](https://www.amazon.com/dp/B071SCYKJ9)
**~~View all trending →~~**
## **What buyers say about overnight diapers size 6**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Leak-Proof**18%
*“No leak”*
**Quality-Overall**8%
*“Good quality pull ups”*
**Sleep Quality**8%
*“Excellent product my grandbaby sleeps all night now”*
**Size-Overall**7%
*“Fit and work as expected”*
**Absorbency**7%
*“Absorbs and fits great”*
**Value For Money**6%
*“Worth the money”*
**Moist/Dry**5%
*“keeping our son dry overnight”*
**Comfort-Overall**4%
*“These are comfortable”*
**Advertised Vs Actual Product**4%
*“Works as expected”*
**Soft Feel**3%
*“softer material which seemed to be more comfortable”*
### **What buyers complain about **
**Leak-Proof**26%
*“Leaks a lot”*
**Quality-Overall**7%
*“they are extremely low quality”*
**Size-Overall**6%
*“Run small and tight”*
**Allergies**5%
*“Caused bad rash”*
**Absorbency**5%
*“Not absorbent”*
**Value For Money**4%
*“Waste of money”*
**Adhesion/Stickiness**3%
*“THE PADS DO NOT HAVE AN ADHESIVE”*
**Durability**3%
*“THEY BREAK DOWN BEFORE EVEN PUTTING THEM IN THE DIAPER”*
**Pain Relief-Overall**2%
*“Causes injury”*
**Advertised Vs Actual Product**2%
*“Misleading pictures”*
### **Top return reasons **
**Size-Overall**63%
**Leak-Proof**9%
**Advertised Vs Actual Product**5%
**Absorbency**4%
**Functionality-Overall**4%
**Age Suitability**3%
**Value For Money**2%
**Adhesion/Stickiness**2%
**Smell**1%
**Quality-Overall**1%
## **Common questions**
- **Is overnight diapers size 6 profitable to sell on Amazon United States?**
- The niche generates $829K/yr across 23 tracked products. 5 of 5 products launched in the last 360 days are still selling. 90-day search growth is -5.9%. Flapen's verdict: Worth a look (61/100).
- **How competitive is the overnight diapers size 6 niche?**
- 10 brands and 36 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 88% of demand.
- **What do buyers complain about in overnight diapers size 6?**
- Top complaints mined from reviews: Leak-Proof, Quality-Overall, Size-Overall. The return rate is 0.8%.
- **When does demand for overnight diapers size 6 peak?**
- Demand peaks in Feb–Mar–Apr–May–Jun; the busiest month runs 4.8× the quietest.
- **What does it cost to enter the overnight diapers size 6 niche?**
- Listings span $9.86–$60.01; the average listing price is $35.73 (sweet spot $15–$100). The average incumbent carries 13,112 reviews — the moat a new listing must climb.
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