---
title: "Trend — king size mattress protector - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/king-size-mattress-protector/trend"
last_updated: "2026-08-01T05:59:53.762Z"
locale: en
meta:
  description: "Niche score 60/100 · £1.0M/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 60/100 · £1.0M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Trend — king size mattress protector - Flapen"
---

# **king size mattress protector**

**Worth a look**

Shows searches that convert (12.6% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 78Growth 19Conversion 95Competition 59Returns 95Price range 48Avg price 51Brand share 69Review moat 17Quality gap 45

**Conversion**

**Incredible****12.6%**

search→purchase rate — share of searches ending in a sale

**Returns**

**Incredible****0.9%**

return rate — above 5% kills the launch gate

**Market size**

**Great****£1.0M**

£1.0M/yr · 667K searches

**Brand share**

**Good****64%**

top-5 brand share — brands hold most of the demand

**Competition**

**Good****49%**

top-5 click share — leaders hold, buyers still browse

**Avg price**

**Good****£12.15**

avg listing price — sweet spot $15–$100

**Price range**

**Okay****£6.64–£22.61**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Growth**

**Bad****-12.0%**

90-day search growth — must beat 0% to launch

**Review moat**

**Bad****18,561.94**

avg incumbent reviews — the moat a new listing must climb