Clinical Research Directory

Inclusion Criteria: Subjects from the age of 20 and older that have an indication for an in-lab PSG study in the Duke University Hospital. The subject should be able to understand the study and sign the informed consent before being enrolled in the study. During the study period, the subject can withdraw from the study anytime. Exclusion Criteria: Subjects with the following medical conditions will be excluded from this study: 1. Heart transplant 2. Heart failure, New Youk Heart Association (NYHA) classification III or IV 3. Chronic Obstructive Lung Disease, Global Initiative for Chronic Obstructive Lung Disease (GOLD) categorization 3 or 4 4. Chronic opioid medication user Devastating Severe strokes, with the modified Rankin score (mRS)≥4 5. Tracheostomy 6. Incapable of comprehending and signing the informed consent and questionnaires, including but not limited to subjects with severe Alzheimers, unconscious by head trauma, or of someone with limited mental capacity Cannot correctly follow the order to use the TipTraQ device