5. Any condition that, in the investigator's opinion, would preclude the participant from being able to understand and use the RESPeRATE device or complete the trial, including severe illness, (e.g., active ischemic heart disease/unstable angina, severe congestive heart failure, chronic atrial fibrillation, stroke resulting in permanent impairment, chronic renal failure or sleep paralysis), plans to move, substance abuse, significant psychiatric problems, or dementia.