Monitoring oxygen levels at home to diagnose sleep apnea

This trial is exploring how oxygen levels change throughout the night in people who may have obstructive sleep apnea (OSA)—a condition where breathing stops and starts during sleep. Researchers will ask you to wear a simple oxygen monitor at home for 7 nights to measure how your oxygen levels vary, and they'll compare these measurements with a standard overnight hospital sleep test.

Right now, doctors rely on expensive overnight hospital tests to diagnose sleep apnea, and a single night of testing may not capture the full picture. This research aims to understand whether home monitoring over multiple nights could be a simpler, more practical way to diagnose this condition and eventually help identify people at risk for serious heart and mood problems.