Pay down your sleep debt. Reclaim your energy.
Habits calculates your sleep debt from the nights you log, estimates your melatonin window from your habits, and gives you concrete, research-based steps to become a better sleeper — including when a nap actually helps.
📉 Sleep debt, quantified
A rolling 14-day ledger of the sleep you owe yourself. Surplus nights and naps pay it down; late nights add to it.
🌙 Melatonin window
We estimate when your body starts releasing melatonin from your habitual bedtime, so you know exactly when to wind down.
⚡ Energy insights
Rate your energy each day and see how it tracks against your sleep debt — the real cost of those late nights, in your own data.
🎧 Wind-down sounds
Built-in noise generator for falling asleep, plus a growing library of sleep science you can act on.