61
twin mattress 12 inch
Worth a lookShows no brand lock-in (top 5 brands take 43% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Brand share
Great43%top-5 brand share — no brand owns this niche
Returns
Great1.6%return rate — above 5% kills the launch gate
Competition
Great35%top-5 click share — an open shelf
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Avg price
Good$131.61avg listing price — sweet spot $15–$100
Market size
Good$432K$432K/yr · 95K searches
Conversion
Okay3.5%search→purchase rate — share of searches ending in a sale
Review moat
Okay2,355.84avg incumbent reviews — the moat a new listing must climb
Growth
Okay+2.2%90-day search growth — must beat 0% to launch
Price range
Bad$39.56–$342.15cheapest to priciest tracked listing — scored on the share inside $15–$100