For Oura and Whoop users

Stop guessing.
Start testing.

Trialself turns your sleep and recovery data into simple experiments, so you know which habits and supplements actually work for you.

The problem

You’ve tried it all. Did any of it work?

Sleep changes by 20 minutes from one night to the next on its own. So when you start something new, a good week feels like proof. Most of the time it’s just noise.

  • Magnesium
  • Creatine
  • Cold plunge
  • Mouth tape
  • Sauna
  • Fasting
  • Zone 2
  • Red light

?

Worked for you?

How it works

  1. Step 1

    Connect what you already wear.

    Link Oura or Whoop in a tap, and add Apple Health or your lab results. Trialself reads up to 90 days of history to learn your normal.

    9:41

    Your data

    Connected

    • Oura Ring

      Synced 2 min ago

    • Whoop

      Synced 5 min ago

    • Apple Health

      Export imported

    • Lab results

      2 reports

    • Garmin

      Coming soon

    History

    90 nights ready to analyze

  2. Step 2

    Test one thing at a time.

    Pick what to try. Trialself sets how long to measure before and after, and asks three quick questions each day so a late dinner doesn’t skew the result.

    9:41

    Magnesium · Deep sleep

    Night 19 of 28

    Baseline · doneMagnesium · night 5

    Today’s check-in

    Took magnesium?YesNo
    Any alcohol?YesNo
    Late workout?YesNo
    Save check-in

  3. Step 3

    Get a clear answer.

    After a few weeks you see what changed, how sure we are, and what to try next. If it didn’t work, you’ll know that too.

    9:41

    Magnesium · 28 nights

    Result

    +12.6 min

    more deep sleep per night

    It worked
    Before · 71 minAfter · 84 min

    Likely range +9.1 to +16.2 min. One night skipped because you logged alcohol.

What you can test

One app for every experiment.

If your wearable can measure it, you can test what changes it.

Sleep.

Deep sleep, REM and how long it takes you to fall asleep.

Recovery.

HRV and resting heart rate, morning by morning.

+9 ms

Example: HRV after 3 weeks of zone 2

Lab results.

Upload blood work and follow your markers from test to test. Example below.

  • Vitamin D24 → 41 ng/mL
  • Ferritin38 → 52 ng/mL
  • ApoB96 → 84 mg/dL

Honest answers.

Every experiment ends one of three ways. All three save you time.

It worked

Keep it, or try a lower dose.

No change

Stop paying for it.

Not sure yet

We’ll tell you how many more nights.

Questions.

Is this medical advice?

No. Trialself isn’t a medical device and doesn’t diagnose anything. It measures what lifestyle changes do to your own data. Talk to your doctor before changing medication or starting supplements.

Which devices work?

Oura and Whoop at launch, plus Apple Health exports and lab results as PDF or CSV. Garmin is next.

What happens to my data?

It’s encrypted, never sold, and never used to train AI models. You can delete everything in one tap.

Where does the AI come in?

Claude spots patterns in your history, helps set up each experiment, and explains the result in plain English. The statistics themselves are calculated in code.

When can I start?

We’re letting people in from the waitlist in small groups, starting with Oura and Whoop users.

Your wearable already tracks everything. Put it to work.

Join the waitlist. We’re letting people in a small group at a time.