nappies size 4
Worth a lookShows low returns (0.1%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Returns
Incredible0.1%return rate — above 6% kills the launch gate
Conversion
Great10.4%search→purchase rate — share of searches ending in a sale
Avg price
Great£19.45avg listing price — sweet spot $15–$100
Price range
Great£6.10–£41.62cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good£820K£820K/yr · 407K searches
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay63%top-5 click share — leaders hold, buyers still browse
Review moat
Bad4,333avg incumbent reviews — the moat a new listing must climb
Growth
Bad-1.5%90-day search growth — must beat 0% to launch
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, nappies size 4 is a £820K/yr Amazon United Kingdom market (407K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 53/100.
Data updated Jul 18, 2026 · scored weekly · How we score niches
Market data
- Units sold / yr
- 40K–50K
- avg 2,000–2,500/product
- Revenue / yr
- £778K–£973K
- units × avg price
- Launch success
- —
- 0 of 0 new (360d)
- Conversion rate
- 10.4%
- Avg BSR
- #184
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 50%
- Out of stock
- 0.0%
- Avg brand age
- 50 months
- Avg seller age
- 153 days
Competition
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.Brands
2 falling
Sellers
79
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
63%
Top 20: 100%
Open market
0%
- Pampers88%
- by Amazon12%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -1.5% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Pampers Baby-Dry Paw Patrol Edition Size 4 222 Nappies 9kg-14kg Monthly Pack Up to a 100% Leak-Free & Comfortable Night
Pampers£35.364.5★1,762 rev
Pampers Premium Protection Size 4 174 Nappies 9kg-14kg Monthly Pack Double protection - Skin comfort - Ultra-soft materials
Pampers£36.474.6★190 rev
Pampers Premium Protection Nappy Pants Size 4 168 Nappies 9kg-15kg Monthly Pack + Pampers Harmonie Aqua Baby Wipes 1 pack of 10 Wipes
Pampers£37.494.7★3,057 rev
By Amazon - 84 Ultra Dry Nappies - Size 4 (8-14 kg) (Previously a Mama Bear Brand Same Product)
by Amazon£10.914.1★13,268 rev
Pampers Premium Protection S4 x 37
Pampers£6.104.4★11 rev
Newest
by launch datePampers Premium Protection S4 x 37
Pampers£6.1011 rev
Pampers Baby-Dry Paw Patrol Edition Size 4 222 Nappies 9kg-14kg Monthly Pack Up to a 100% Leak-Free & Comfortable Night
Pampers£35.361,762 rev
PAMPERS Baby-Dry Size 4 Jumbo+ Pack 84 Nappies
Pampers£14.8722 rev
Pampers Baby-Dry Characters Paw Patrol Nappy Pants S4
Pampers£31.822,617 rev
Pampers Harmonie Nappies Size 4 174 Nappies 9kg-14kg Monthly Pack Gentle Skin Protection with 100 Percent Pampers Protection
Pampers£41.628,276 rev
Trending
90-day click momentumPampers Premium Protection S4 x 37
Pampers£6.104.4★
Pampers Baby-Dry Size 4 9-14 kg 25 Count
Pampers£8.064.3★
Pampers Baby-Dry Nappy Pants Size 4 38 Nappies 9kg-15kg Essential Pack 360 Fit To Help Prevent Gaps And Leaks
Pampers£6.284.6★
PAMPERS Baby-Dry Size 4 Jumbo+ Pack 84 Nappies
Pampers£14.874.7★
by Amazon Disney Nappy Pants Size 4 (9-15 kg) 160 Count (2 Packs of 80) White - Monthly Pack (Previously a Mama Bear brand same product)
by Amazon£19.254.2★
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Great product”
“They fit really well”
“They are gentle and effective”
“Amazing value”
“Not very difficult to put on”
“Great quality and no leaks”
“comfort”
“cute design with the cute pictures”
“*they can absorb a fair amount of wee”
“They are also nice and thin, and they don't become very bulky”
What buyers complain about
“The lack of absorbancy has given our son extremely bad nappy rash to the point he's in severe discomfort”
“Theyre constantly leaking when they never used to”
“Very poor value for money”
“It just becomes more a mess”
“Not good nappies are hard”
“It has an unpleasant urine smell”
“also feel quite wet inside”
“Rubbish”
“Too thin”
“It just doesnt make sense compared to how reliable they used to be”
Top return reasons
Common questions
- Is nappies size 4 profitable to sell on Amazon United Kingdom?
- The niche generates £820K/yr across 18 tracked products. 90-day search growth is -1.5%. Flapen's verdict: Worth a look (53/100).
- How competitive is the nappies size 4 niche?
- 2 brands and 79 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in nappies size 4?
- Top complaints mined from reviews: Allergies, Leak-Proof, Value For Money. The return rate is 0.1%.
- When does demand for nappies size 4 peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the nappies size 4 niche?
- Listings span £6.10–£41.62; the average listing price is £19.45 (sweet spot $15–$100). The average incumbent carries 4,333 reviews — the moat a new listing must climb.
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