40
air mattress topper
Skip itA deep review moat (42,569 avg reviews) — this niche doesn't clear our bar today.
Avg price
Incredible$44.18avg listing price — sweet spot $15–$100
Price range
Incredible$33.04–$61.09cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.5%return rate — above 5% kills the launch gate
Growth
Good+22.0%90-day search growth — must beat 0% to launch
Quality gap
Good4.5★avg incumbent rating — lower means beatable quality
Conversion
Okay3.0%search→purchase rate — share of searches ending in a sale
Market size
Okay$115K$115K/yr · 88K searches
Competition
Bad80%top-5 click share — a locked-up shelf
Brand share
Bad98%top-5 brand share — brand-locked demand
Review moat
Bad42,569avg incumbent reviews — the moat a new listing must climb