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You can set a WHOOP 4.0 haptic alarm in the app under Home → Tonight’s Sleep → Sleep Planner. Choose an exact wake time for a fixed appointment, or use Sleep Goal or In the Green if you can wake within a one-hour window. These settings help schedule when the band vibrates; WHOOP’s instructions do not establish that the alarm itself improves sleep.

Set the alarm in Sleep Planner

  1. Open the WHOOP app and go to Home.
  2. Scroll below Today’s Activities and tap Tonight’s Sleep to open Sleep Planner.
  3. Turn on the Haptic Alarm.
  4. Choose Exact Time, Sleep Goal, or In the Green.
  5. Set the time or goal details for the mode you selected, then review the suggested bedtime and alarm time shown in Sleep Planner.

For Sleep Goal bedtime recommendations, WHOOP says to set Tomorrow I want to to Reach My Sleep Goal in Sleep Planner. The Haptic Alarm instructions are in WHOOP Support’s Setting the Haptic Alarm Using Sleep Planner (October 30, 2025).

Choose the mode that fits your morning

Mode How it works Best fit
Exact Time The band vibrates at the time you choose. A fixed wake-up time, such as an appointment or commute.
Sleep Goal Choose a sleep-need target—Peak (100%), Perform (85%), or Get By (70%)—and a latest wake time. If you reach the target, WHOOP may wake you within the hour before that latest time. If you do not reach it, the alarm sounds at the latest time. A morning when you can accept a wake-up window in exchange for aiming to meet a selected sleep-need target.
In the Green Choose a latest wake time. WHOOP aims to wake you in the preceding hour once Recovery reaches 67% or higher. If Recovery does not reach that threshold by the latest time, the alarm sounds then. A morning when you can accept a one-hour window tied to the Recovery threshold.

Sleep Goal and In the Green are not alarms that can wake you at any point overnight: the one-hour window is before the latest wake time. If you must be up at a particular time, Exact Time avoids that window. WHOOP documents these modes and thresholds in its Haptic Alarm instructions.

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Make the alarm repeat on selected days

  1. In Sleep Planner, tap the calendar icon.
  2. Choose the days you want the alarm to run.
  3. Select the alarm mode, then set its sleep goal if applicable and the wake time.
  4. Save the schedule.
  5. When needed, turn on the wake scheduler under My Schedule.

Fix common alarm problems

Low WHOOP battery

WHOOP says the app displays a low-battery warning below 20% and advises keeping the band above 10% to ensure the alarm goes off. Charge it and heed the in-app warning; a scheduled alarm does not guarantee the sensor will have enough power to sound. The percentages are product guidance from WHOOP, not independent sleep or reliability measurements.

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Low phone battery

WHOOP says the app may warn when the phone battery is low. If the phone runs out overnight, the alarm will sound at the latest wake time rather than following the earlier goal-based timing.

“Saving failed”

WHOOP says this message means the WHOOP 4.0 is not connected to the phone. Reconnect the band to the phone and try saving again.

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Stop the vibration

Double-tap the WHOOP to stop the alarm, or let it stop automatically after 30 seconds. You can also turn it off from the Overview notification card or in Sleep Planner.

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No snooze option

WHOOP states that the Haptic Alarm has no snooze functionality. If you cannot risk missing a time-critical wake-up, use an independent alarm you already trust as a backup.

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WHOOP’s setup guidance also covers charging and pairing the band: Setting Up Your WHOOP (August 13, 2026).

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