waterproof mattress protector small double
Skip itPrices mostly outside the sweet spot ($5.81–$14.74) — this niche doesn't clear our bar today.
Conversion
Incredible16.3%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay65%top-5 click share — leaders hold, buyers still browse
Brand share
Okay87%top-5 brand share — brands hold most of the demand
Avg price
Okay£9.57avg listing price — sweet spot $15–$100
Growth
Bad-14.9%90-day search growth — must beat 0% to launch
Review moat
Bad17,200.73avg incumbent reviews — the moat a new listing must climb
Market size
Bad£51K£51K/yr · 33K searches
Price range
Bad£5.81–£14.74cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, waterproof mattress protector small double is a £51K/yr Amazon United Kingdom market (33K searches/yr). The top 5 brands hold 87% of demand. Demand peaks in Jan. Verdict: Skip it — 38/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
waterproof mattress protector small double market data
- Units sold / yr
- 5K–6K
- avg 250–500/product
- Revenue / yr
- £48K–£57K
- units × avg price
- Conversion rate
- 16.3%
- Avg BSR
- #29
- Page quality
- 0%
- Prime
- 67%
- Sponsored
- 87%
- Out of stock
- 4.8%
- Avg brand age
- 44 months
- Avg seller age
- 191 days
Competition & brand share
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.Brands
9 falling
Sellers
15
Top-5 brand share
87%
Top 20: 100%
Top-5 click share
65%
Top 20: 100%
Open market
8%
- Utopia Bedding32%
- CAROLINE SHATUIK28%
- Silentnight14%
- ECOBIZ7%
- IMFAA6%
- ACRALI HOME5%
- Open — no brand owns it (3 brands, 8%)
Demand & seasonality
Weekly Amazon search volume, last 75 weeks — -14.9% search growth over the last 90 days.Peak months: Jan · busiest ÷ quietest = 1.7×
Top waterproof mattress protector small double search terms
- small double waterproof mattress protector15K/yr
- waterproof mattress protector small double13K/yr
- small double mattress protector waterproof5K/yr
Top waterproof mattress protector small double 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.
All 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Caroline Shatuik 100% Waterproof Mattress Protector Small Double Anti Allergy Fitted Sheet Style Small Double Mattress Protector Bed Topper Cover(4ft/122x190+30cm)
CAROLINE SHATUIK£8.234.5★11,349 rev
Waterproof Mattress Protector Small Double Bed 120 x 190 cm Fits Up to 30 cm Deep Mattresses Premium Terry Mattress Protector All Around Elastic by Utopia Bedding
Utopia Bedding£6.954.6★108,982 rev
Silentnight Waterproof Mattress Protector Small Double - Quiet Rustle Free Waterproof Resistant Sheet Moisture Proof Mattress Pad Cover - Machine Washable and Hypoallergenic - Small Double 4ft
Silentnight£12.904.5★3,713 rev
Utopia Bedding Waterproof Strap Mattress Protector Small Double Bed 120 x 190 cm White Fits Up to 30cm Deep Mattresses Premium Terry Mattress Protector 4 Side Elastic Strap Mattress Cover
Utopia Bedding£5.814.3★11,722 rev
ECOBIZ Cotton Small Double Mattress Protector Fitted Waterproof Sheet Washable Super Absorbent Anti Allergy 3/4 Waterproof Mattress Protector Small Double Bed Cover Non-Noisy 4FT Mattress Protector
ECOBIZ£9.404.4★7,424 rev
Newest
by launch date
ELOVELA 100% Waterproof Small Double Mattress Protector 40cm Extra Deep Fitted Stretch Skirt Breathable & Hypoallergenic Mattress Cover for Ultimate Comfort Machine Washable - (122 x 190cm)
ELOVELA£13.9738 rev
ELITLUX 100% Waterproof Mattress Protector Noiseless Absorbent & Machine Washable Small Double Mattress Protector (122x190cm) With Extra Deep 30cm Fitted Skirt
ELITLUX£14.7453 rev
LOOMERIG 100% Waterproof Mattress Protector Small Double Bed Extra Deep 40cm Fitted Skirt Breathable & Anti-Allergy Mattress Cover for Ultimate Comfort (White 122x190cm)
LOOMERIG£13.2559 rev
Acrali Home Quilted Deep Fitted Waterproof Small Double Mattress Protector
ACRALI HOME£10.26298 rev
Utopia Bedding Waterproof Strap Mattress Protector Small Double Bed 120 x 190 cm White Fits Up to 30cm Deep Mattresses Premium Terry Mattress Protector 4 Side Elastic Strap Mattress Cover
Utopia Bedding£5.8111,722 rev
Trending
90-day click momentumELOVELA 100% Waterproof Small Double Mattress Protector 40cm Extra Deep Fitted Stretch Skirt Breathable & Hypoallergenic Mattress Cover for Ultimate Comfort Machine Washable - (122 x 190cm)
ELOVELA£13.974.7★
ELITLUX 100% Waterproof Mattress Protector Noiseless Absorbent & Machine Washable Small Double Mattress Protector (122x190cm) With Extra Deep 30cm Fitted Skirt
ELITLUX£14.744.6★
IMFAA Bamboo Water Proof Mattress Protector Topper cover Extra Deep Fitted 40 CM Depth Breathable Antialergy Non Noisy Bug Proof (Small Double-4FT(122x190+40) cm)
IMFAA£8.684.6★
LOOMERIG 100% Waterproof Mattress Protector Small Double Bed Extra Deep 40cm Fitted Skirt Breathable & Anti-Allergy Mattress Cover for Ultimate Comfort (White 122x190cm)
LOOMERIG£13.254.8★
IMFAA 100% Water & Moisture Proof Extra Deep Terry Towel Mattress Protector Topper Cover Anti Allergy and Breathable. (White Cot(60x120x15) FBA)
IMFAA£6.704.5★
What buyers say about waterproof mattress protector small double
What buyers praise and complain about, mined from review topics.What buyers love
“Great quality & the feel is comfort, theres no slipping & sliding around like the cheap ones”
“Fits well”
“Worth the money”
“True to picture”
“really water proof”
“this one stays quiet”
“comfortable”
“It feels soft”
“Very effective for a bed wetting toddler”
“Mattress protection”
What buyers complain about
“they are no longer waterproof”
“Poor quality”
“Thin”
“A little noisier than I expected”
“But price should be £3/£4 pounds less”
“SINGLE SIZE IS VERY SMALL”
“its not very comfortable you definitely need another cover onto to make it feel less plastic”
“Wet went straight through”
“Doesnt work”
“it was quite a struggle getting it on”
Top return reasons
Common questions
- Is waterproof mattress protector small double profitable to sell on Amazon United Kingdom?
- The niche generates £51K/yr across 15 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -14.9%. Flapen's verdict: Skip it (38/100).
- How competitive is the waterproof mattress protector small double niche?
- 9 brands and 15 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 87% of demand.
- What do buyers complain about in waterproof mattress protector small double?
- Top complaints mined from reviews: Water Resistance, Quality-Overall, Thickness. The return rate is 0.8%.
- When does demand for waterproof mattress protector small double peak?
- Demand peaks in Jan; the busiest month runs 1.7× the quietest.
- What does it cost to enter the waterproof mattress protector small double niche?
- Listings span £5.81–£14.74; the average listing price is £9.57 (sweet spot $15–$100). The average incumbent carries 17,201 reviews — the moat a new listing must climb.