---
title: "Waterproof Mattress Protector Double — £765K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/waterproof-mattress-protector-double"
last_updated: "2026-07-31T17:30:55.044Z"
locale: en
meta:
description: "Niche score 50/100 · £765K/yr market · 989K searches/yr. A deep review moat (21,431 avg reviews) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · £765K/yr market · 989K searches/yr. A deep review moat (21,431 avg reviews) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Waterproof Mattress Protector Double — £765K/yr Amazon UK Niche (2026) - Flapen"
---
# **waterproof mattress protector double**
**Worth a look**
Shows low returns (0.7%), but a deep review moat (21,431 avg reviews) keeps it on the watch list.
Market size 71Growth 17Conversion 81Competition 50Returns 97Price range 30Avg price 25Brand share 40Review moat 16Quality gap 38
**Returns**
**Incredible****0.7%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****8.6%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****£765K**
£765K/yr · 989K searches
**Competition**
**Okay****55%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****81%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Price range**
**Okay****£5.18–£19.18**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****£9.04**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-15.8%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****21,430.68**
avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United Kingdom niche tracking, waterproof mattress protector double is a £765K/yr Amazon United Kingdom market (989K searches/yr). The top 5 brands hold 81% of demand. Verdict: Worth a look — 50/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **waterproof mattress protector double market data**
- **Units sold / yr**
- **80K–100K**
- avg 3,000–4,000/product
- **Revenue / yr**
- **£723K–£904K**
- units × avg price
- **Conversion rate**
- **8.6%**
- **Avg BSR**
- **#20**
- **Page quality**
- **0%**
- **Prime**
- **64%**
- **Sponsored**
- **96%**
- **Out of stock**
- **6.5%**
- **Avg brand age**
- **52 months**
- **Avg seller age**
- **191 days**
## **Competition & brand share**
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**15 **▲rising
**Sellers**
**21**
**Top-5 brand share**
**81%**
Top 20: 100%
**Top-5 click share**
**55%**
Top 20: 94%
**Open market**
**16%**
- CAROLINE SHATUIK33% - Utopia Bedding19% - Silentnight12% - Yorkshire Bedding11% - ACRALI HOME7% - IMFAA3% - Open — no brand owns it (9 brands, 16%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -15.8% search growth over the last 90 days.
23K18KPrime Day '25Spike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/home-garden/waterproof-mattress-protector-double/trend)
## **Top waterproof mattress protector double search terms**
- **waterproof mattress protector**664K/yr-18.9%4.6% conv. - **waterproof mattress protector double**64K/yr-7.5%9.9% conv. - **double waterproof mattress protector**45K/yr-3.4%14.6% conv. - **double mattress protector waterproof**37K/yr-12.4%12.3% conv. - **water proof mattress protector double bed fitted**26K/yr-2.3%6.2% conv. - **waterproof double mattress protector**23K/yr-7.5%11.9% conv. - **mattress protector waterproof**20K/yr-17.3%3.5% conv. - **waterproof mattress cover**17K/yr-15.8%2.1% conv. - **waterproof mattress protector double bed**16K/yr-3.5%11.2% conv. - **double bed waterproof mattress protector**11K/yr+1.6%14.1% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/waterproof-mattress-protector-double/search-terms)
## **Top waterproof mattress protector 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.
0%5%£38K10%£77K15%£115K20%£153K101001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Caroline Shatuik 100% Waterproof Mattress Protector Double-30cm Extra Deep Stretch Skirt Non-Noisy Terry Top Fitted Mattress Protector Double Bed Cover(137x190cm)**CAROLINE SHATUIK**£9.06**4.5★11,349 rev](https://www.amazon.co.uk/dp/B09TTWKQ3X) [2**Caroline Shatuik Waterproof Mattress Protector Single 30cm Extra Deep Stretch Skirt Non-Noisy Terry Top Single Mattress Cover Single Bed(90 x 190cm)**CAROLINE SHATUIK**£6.83**4.5★11,349 rev](https://www.amazon.co.uk/dp/B09TNFJX22) [3**Yorkshire Bedding 100% Waterproof Mattress Protector - 30cm Deep Skirt Mattress Protector Double Bed - Non Noisy & Super Absorbent Terry Towel Mattress Cover (137x190cm)**Yorkshire Bedding**£7.47**4.6★1,310 rev](https://www.amazon.co.uk/dp/B0D8VQB8L8) [4**Silentnight Waterproof Mattress Protector Single - Quiet Rustle Free Waterproof Resistant Sheet Moisture Proof Mattress Pad Cover - Machine Washable and Hypoallergenic - Single**Silentnight**£9.12**4.6★4,300 rev](https://www.amazon.co.uk/dp/B08FRH3NFR) [5**Acrali Home 100% Waterproof Mattress Protector Double Bed With Extra Deep 40 CM Skirt Premium Terry Towel Cotton Anti Allergy Double Mattress Protector - Washable & Nonslip Mattress Cover**ACRALI HOME**£9.69**4.5★1,725 rev](https://www.amazon.co.uk/dp/B0D26JFSB5)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**BEDLORE Waterproof Double Mattress Protector Brushed Microfiber with Upgraded TPU Layer Deep Pocket Hypoallergenic Breathable Noiseless Oeko-tex Mattresses Cover (Gray)**BEDLORE**£19.18**951 rev7mo ago](https://www.amazon.co.uk/dp/B0FLPZCM3Z) [**Magna Collection Waterproof Mattress Protector Soft Super Absorbent Non-Slip and Non-Allergenic Machine Washable Mattress Cover Fits up to 30cm Deep (Double)**MAGNA COLLECTION**£9.86**81 rev11mo ago](https://www.amazon.co.uk/dp/B0FMK93HGF) [**Lakhmaali Quilted Waterproof Double Bed Mattress Protector 4-Layer Super Absorbent Extra Deep 35cm Fitted Skirt Hypoallergenic & Breathable Washable Mattress Covers for Home & Hotel Use-137X190cm**Lakhmaali**£11.86**200 rev1y ago](https://www.amazon.co.uk/dp/B0DVLQSBPN) [**Oliver Bedding Quilted Double Mattress Protector (137x191 cm) Waterproof Mattresses Protector Double Bed Fits Mattress up to 30cm Deep Breathable Bed Mattresses Cover White**Oliver Bedding**£9.98**555 rev1y ago](https://www.amazon.co.uk/dp/B0DHD3LQLN) [**Yorkshire Bedding 100% Waterproof Mattress Protector - 30cm Deep Skirt Mattress Protector Double Bed - Non Noisy & Super Absorbent Terry Towel Mattress Cover (137x190cm)**Yorkshire Bedding**£7.47**1,310 rev2y ago](https://www.amazon.co.uk/dp/B0D8VQB8L8)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**BedOre 100% Waterproof Mattress Protector Terry Top - Extra Deep 40cm Fitted Skirt - Mattress Protector Double Bed - Super Absorbent - Double (137x190) cm - Extra Deep**Bed'Ore**£7.91**4.5★**▲ 343%**](https://www.amazon.co.uk/dp/B0F99ZH3RW) [**Waterproof Mattress Protector Single Bed 90 x 190 cm Fits Up to 30 cm Deep Mattresses Premium Terry Single Mattress Protector All Around Elastic Single Mattress Cover by Utopia Bedding**Utopia Bedding**£5.18**4.6★**▲ 255%**](https://www.amazon.co.uk/dp/B09Q5MB2Z1) [**BEDLORE Waterproof Double Mattress Protector Brushed Microfiber with Upgraded TPU Layer Deep Pocket Hypoallergenic Breathable Noiseless Oeko-tex Mattresses Cover (Gray)**BEDLORE**£19.18**4.8★**▲ 195%**](https://www.amazon.co.uk/dp/B0FLPZCM3Z) [**Magna Collection Waterproof Mattress Protector Soft Super Absorbent Non-Slip and Non-Allergenic Machine Washable Mattress Cover Fits up to 30cm Deep (Double)**MAGNA COLLECTION**£9.86**4.4★**▲ 96%**](https://www.amazon.co.uk/dp/B0FMK93HGF) [**4AS 100% Waterproof Mattress Protector Super Absorbent & Aloe Vera Treated Terry Towel with Deep 30cm Fitted Skirt for Extra Comfort Double Mattress Protector (138x190+30 cm)**4AS**£10.91**4.6★**▲ 63%**](https://www.amazon.co.uk/dp/B0D54FD172)
**~~View all trending →~~**
## **What buyers say about waterproof mattress protector double**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**20%
*“Top quality mattress cover”*
**Size-Overall**16%
*“Easy fit”*
**Value For Money**11%
*“Value for money”*
**Advertised Vs Actual Product**9%
*“As described”*
**Water Resistance**9%
*“completely waterproof”*
**Comfort-Overall**5%
*“Very comfy”*
**Soft Feel**3%
*“Fantastic soft”*
**Washability**2%
*“The wash really nice”*
**Ease Of Use**2%
*“Easy to use”*
**Noise Level**2%
*“makes no noise”*
### **What buyers complain about **
**Water Resistance**30%
*“NOT WATERPROOF”*
**Quality-Overall**7%
*“Cheaply made”*
**Size-Overall**6%
*“the fit is slightly looser than expected”*
**Thickness**5%
*“Not a lot of depth”*
**Noise Level**4%
*“Very noisy”*
**Material Quality**3%
*“The sides material is so thin it wont last long”*
**Advertised Vs Actual Product**3%
*“Its a complete lie what they say and advertise”*
**Value For Money**3%
*“Not great value for money”*
**Functionality-Overall**3%
*“Doesnt work”*
**Leak-Proof**2%
*“It doesnt protect any water leaking”*
### **Top return reasons **
**Size-Overall**52%
**Quality-Overall**10%
**Material Quality**9%
**Noise Level**4%
**Water Resistance**4%
**Advertised Vs Actual Product**3%
**Thin**2%
**Stain Resistance**2%
**Thickness**1%
**Comfort-Overall**1%
## **Common questions**
- **Is waterproof mattress protector double profitable to sell on Amazon United Kingdom?**
- The niche generates £765K/yr across 25 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -15.8%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the waterproof mattress protector double niche?**
- 15 brands and 21 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 81% of demand.
- **What do buyers complain about in waterproof mattress protector double?**
- Top complaints mined from reviews: Water Resistance, Quality-Overall, Size-Overall. The return rate is 0.7%.
- **When does demand for waterproof mattress protector double peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the waterproof mattress protector double niche?**
- Listings span £5.18–£19.18; the average listing price is £9.04 (sweet spot $15–$100). The average incumbent carries 21,431 reviews — the moat a new listing must climb.
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