42
waterproof mattress
Skip itA small market ($67K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.3%return rate — above 5% kills the launch gate
Avg price
Great£66.05avg listing price — sweet spot $15–$100
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Price range
Good£8.50–£145.10cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good1,225.25avg incumbent reviews — the moat a new listing must climb
Conversion
Okay2.4%search→purchase rate — share of searches ending in a sale
Brand share
Bad90%top-5 brand share — brand-locked demand
Growth
Bad-3.8%90-day search growth — must beat 0% to launch
Competition
Bad77%top-5 click share — a locked-up shelf
Market size
Bad£67K£67K/yr · 43K searches
Signals High Price