Not a quiz. An audit - triangulated against the catalog.
Oura or Whoop, 14 nights. Or enter manually. Or skip.
Position, build, budget, feel, temperature, pain points, materials.
Inputs → a spec vector: firmness, cooling, support, pressure, motion - with findings.
Prescription + confidence + 3–5 ranked matches, with reasoning.
We ask the nervous system, not your preferences. Read once, never stored.
weights are categorical priors · the engine adapts them per audit
"We measured this. Here's what we found. Most mattress quizzes can't say either thing."
Tagged on 8 axes. Same set every audit. No pay-to-play.
aggregate-fit across 14-night audits, last 30 days · indicative
14 nights once. The contract:
One read on connect: HRV, RHR, skin temp, stages.
Read, then discarded. No refresh.
Aggregate audit only. No name, no account.
Quizzes treat preferences as conclusions. We read your wearable and treat answers as priors. Matching is mechanical - you see the same answer we saw.
Enter numbers manually, or skip. Confidence drops, and we say so.
Fixed-rate affiliate commission from some brands. Ranking is decoupled and disclosed.
The specimen card is a real engine response, redacted.
Five minutes. No account. Email optional.