A method for helping a user awaken from sleep includes receiving information indicating a wake-up time frame; receiving a plurality of biometric readings of the user, each biometric reading including at least one of a heart rate or respiration rate; based on the plurality of biometric readings, determining that the user has had sufficient sleep; and arranging a wake-up sound after entering the wake-up time frame and after determining that the user has had sufficient sleep or at the end of the wake-up timeframe.