document ST-001·issue v1.4·jurisdiction AU
SleepTight
a biometric mattress audit · for Australia

Prescriptions, not recommendations.

Connect Oura or Whoop. Answer ten questions. We rank the AU catalog by fit, never commission.

Begin the audit~5 min · no account needed
01
Real biometrics, not vibes

14 nights, parsed and discarded.

02
Clear about what we know

Confidence shown. Low-data audits say so.

03
AU catalog, AU sizes

32 SKUs across 5 AU brands.

specimen audit
Specimen · 14n · oura
0.78 high
HRV · last 14 nights · ms
μ 47.2
22 aprpeak +0.4σtoday
prescription · spec vector
cooling
0.80
support
0.70
pressure relief
0.70
firmness
0.60
3 of 32 matchaudit · 17c79e54

↑ specimen rendered from a real engine response · audit 17c79e54

§ 02, methodology

Four steps. One defensible answer.

Not a quiz. An audit — triangulated against the catalog.

step 01
~30s

Connect the signal

Oura or Whoop, 14 nights. Or enter manually. Or skip.

OuraWhoopManualSkip
step 02
~3 min

Ten questions

Position, build, budget, feel, temperature, pain points, materials.

questions/10
step 03
~3s

Run the engine

Inputs → a spec vector: firmness, cooling, support, pressure, motion — with findings.

findings06 active
step 04
deliverable

The audit

Prescription + confidence + 3–5 ranked matches, with reasoning.

0.78 high3 of 32 match
§ 03, inputs

What the engine reads.

We ask the nervous system, not your preferences. Read once, never stored.

HRV (avg, 14n)
oura · whoop · manual
47.2 ms
×1
Resting heart rate
oura · whoop · manual
58 bpm
×1
Skin-temp °C
oura · whoop
+0.4 °C
×3
Sleep efficiency
oura · whoop · manual
91 %
×1
Deep / REM share
oura · whoop
18 / 22 %
×1
Latency · WASO
oura · whoop · manual
12 / 25 min
×2
Quiz answers
10 questions
10 / 10
×4

weights are categorical priors · the engine adapts them per audit · see methodology

§ 04, positioning

What we're not.

we are not
  • ×A mattress retailer with a quiz on top.
  • ×A sleep tracker. We're a one-shot decision tool.
  • ×A subscription service. There's no account.
  • ×Available outside Australia. Not yet.
we are
  • +A biometric audit you take once and act on.
  • +Linear. Five minutes from start to answer.
  • +Paid by brands at fixed commission. Not by ranking.
  • +Built around the AU catalog and AU sizes.
excerpt · founder note
"We measured this. Here's what we found. Most mattress quizzes can't say either thing."
§ 05, catalog

32 mattresses. 5 brands. 6 sizes.

Tagged on 8 axes. Same set every audit. No pay-to-play.

brand · 01
Ecosa
7 SKUs · A$830–1,670
brand · 02
Koala
6 SKUs · A$750–1,950
brand · 03
Origin
5 SKUs · A$908–1,610
brand · 04
Sealy
8 SKUs · A$1,200–4,400
brand · 05
Sleeping Duck
6 SKUs · A$1,099–2,599

scores reflect aggregate-fit across all 14-night audits in the last 30 days · indicative only

§ 06, privacy

Your data, briefly.

14 nights once. The contract:

we read
14 nights, once

One read on connect: HRV, RHR, skin temp, stages.

we don't store
Your OAuth token

Read, then discarded. No refresh.

we keep
The audit, in aggregate

Aggregate audit only. No name, no account.

§ 07, frequently asked

Plain answers.

How is this not just another mattress quiz?+

Quizzes treat preferences as conclusions. We read your wearable and treat answers as priors. Matching is mechanical — you see the same answer we saw.

What if I don't have a wearable?+

Enter numbers manually, or skip. Confidence drops, and we say so.

How are you paid?+

Fixed-rate affiliate commission from some brands. Ranking is decoupled and disclosed.

Can I see a sample audit before I take one?+

The specimen above is a real engine response, redacted.

§ 08, begin

Ready for a confident audit?

Five minutes. No account. Email optional.

Begin the audit
~5 min · no account needed