Evaluating the Impact of Home-Based Sleep Apnea Diagnostic on Well-Being, Health Behavior, and AF Load in Patients With Atrial Fibrillation Using a Decentralized Platform

This study is looking at whether testing patients with atrial fibrillation (an irregular heartbeat) for sleep apnea at home — using a decentralized digital platform — can improve their wellbeing, health behaviors, and how often their heart goes back into an irregular rhythm. Sleep apnea is common in people with AF and can make it harder to treat. **You may be eligible if...** - You have been diagnosed with paroxysmal (comes and goes) or persistent atrial fibrillation - You own a compatible smartphone (or are willing to use one provided by the study) - You understand what sleep apnea is and are open to treatment options like CPAP **You may NOT be eligible if...** - You have already been tested or treated for sleep-disordered breathing - You have advanced heart failure with severely reduced heart function (NYHA Class III or IV) - You hold an occupational driver's license - You are pregnant - You take certain alpha-blocking medications (doxazosin or terazosin) - You have peripheral artery disease with daily pain when walking Talk to your doctor to see if this trial is right for you.