40
full size mattress sheets
Skip itA deep review moat (148,298 avg reviews) — this niche doesn't clear our bar today.
Avg price
Great$21.31avg listing price — sweet spot $15–$100
Price range
Great$10.49–$38.44cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Great1.8%return rate — above 5% kills the launch gate
Competition
Okay61%top-5 click share — leaders hold, buyers still browse
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Growth
Okay+7.7%90-day search growth — must beat 0% to launch
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Conversion
Bad1.9%search→purchase rate — share of searches ending in a sale
Market size
Bad$78K$78K/yr · 187K searches
Review moat
Bad148,297.86avg incumbent reviews — the moat a new listing must climb