How it works

A decision, not a schedule.

Aubade is built around one idea: waking up is a decision worth making intelligently. Here's how that decision gets made — from the moment you sleep to the moment you wake.

01 — Define your rules

Set the constraints that matter.

Aubade doesn't make decisions for you. It applies your rules with precision. Tell it your target recovery, your latest acceptable wake time, your wake window, and any exceptions.

Example: "Wake me between 7:15 and 7:45 only if I'm in light sleep or my recovery is above 90. If I hit 94 before 7:15, wake me early."

Tonight's rule
Wake window 7:15 — 7:45
Target recovery 92
Early wake at 94+
Wake style GENTLE
02 — While you sleep

Aubade reads, models, and waits.

Heart rate, HRV, movement, sleep stage signals, and time asleep all feed a continuously-updated recovery model. It runs quietly through the night.

Heart rate trends

Lower resting heart rate through the night signals deeper recovery.

HRV variability

Heart rate variability is one of the strongest indicators of nervous system recovery.

Sleep stage estimation

Light, deep, REM, and awake periods — drawn from Apple Health and on-watch signals.

Personal baseline

Your past 14–60 days form a baseline so today's number is meaningful for you specifically.

03 — The decision moment

Inside the wake decision engine.

As your wake window approaches, Aubade evaluates every signal against your rules — and either waits, prepares to wake, or wakes you now.

If recovery ≥ target and sleep stage is lightconditions met for optimal wake
Wake now
If recovery < target and time before cutoffmore sleep may meaningfully improve recovery
Keep sleeping
If projected gain < 1 pointfurther sleep no longer adding meaningful value
Wake now
If in deep sleep and time remainingavoid waking from deep sleep when possible
Wait for transition
If latest wake time arriveshard cutoff respected regardless of state
Wake now
01

Soft haptic

Apple Watch wrist tap. Felt only by you, never by a partner.

02

Low ambient tone

Begins at the edge of hearing. No sudden onset.

03

Gradual rise

Volume and intensity increase over 60–90 seconds.

04

Full alarm — fallback only

Engages only if earlier stages don't bring you up.

04 — The wake itself

A protocol, not a buzzer.

Most alarms have one volume: maximum. Aubade escalates only as needed, and only as far as needed. The full alarm becomes a fallback — not a default.

Three styles available: Gentle for normal mornings. Balanced for most days. Immediate for the days reliability matters more than comfort.

05 — Every morning

Always know why.

Aubade tells you — in plain language — why it woke you when it did. The decision is never a black box.

Example A
"We woke you at 7:29."

You reached your recovery target of 92 and were in light sleep. Projected benefit from more sleep was below one point.

Example B
"We waited 14 minutes."

At 7:10 you were in deeper sleep and below target. We waited until 7:24, when your sleep state improved.

Example C
"Hard cutoff."

You were below your target score, but your latest wake time of 7:45 arrived.

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