The sound monitoring is horribly faulty. Often nights shows either dead silence or noise all night. The sound detection is fairly poor often claiming to detect coughing or snoring when it's some other noise. The app doesn't allow you to snooze and keep tracking your sleep. Also can't set auto alarm or optimal wake up time based on cycle, it only asks you for a specific time. The sound clips are cut to 5s for some reason when I have plenty of phone memory. The paid app offers nothing of value.