Peak Sleep: when should I go to bed to wake up with 100% Body Battery? Peak Sleep answers one question right in your glance list: "Sleep at 22:40 – in 1 h 20 min · BB 54%" It learns how fast YOUR Body Battery recharges at night and how fast it drains in the evening, and calculates the latest bedtime that still gets you to your target by your alarm. WHAT YOU SEE - Glance: bedtime and countdown. Yellow = plan, blue = go to sleep now, red = target out of reach (shows how much you will still get), green = already above target. - Answer: Body Battery ring (the darker part is what the evening will still drain), bedtime, countdown, Body Battery at bedtime. - Why: the inputs – Body Battery now, evening drain, recharge rate and where it comes from. - Last nights: recharge rate of up to 7 learned nights. - Morning summary (after waking up until noon): "Charged to 92%", whether you went to bed on time ("35 min late") and how many nights in a row you fell short of your target or reached it. HOW IT WORKS - A background service stores one Body Battery sample every 30 minutes. - From these samples the widget finds each night (fall asleep = lowest point, wake up = highest point) and learns your recharge rate and evening drain (median of the last 7 nights). - Learning needs 3 valid nights. Until then it uses the manual rate (default 10 BB/h) and shows "learning N/3". - The alarm time comes from your Garmin sleep schedule, or you can set it manually. SETTINGS (Garmin Connect app or on the watch via Menu) - Target Body Battery: 50–100% (default 100) - Recharge rate: Auto (learned) or Manual (1–30 BB/h) - Alarm source: Garmin sleep schedule or Manual (hour / minute) - Reset learned data (on the watch) TIPS - Open the widget at least every other day so no night is missed. - Nights with a gap in data longer than 2 hours (watch off or charging) are skipped. Languages: English, Spanish, German, French, Italian, Portuguese, Dutch, Polish, Czech. Requires a watch with Body Battery. Forerunner 645 / 645 Music / 935 are no longer supported (no Body Battery API).

Peak Sleep 3.2 – more languages NEW - Peak Sleep now speaks Spanish, German, French, Italian, Portuguese, Dutch and Polish (plus English and Czech). The widget follows your watch language, the settings in Garmin Connect follow your phone language. Includes everything from 3.1: morning summary after waking up ("Charged to 92%", bedtime on time or late, streak of nights).