Continuous Positive Airway Pressure (CPAP) for Sleep Apnea in Pregnancy

This trial is testing whether CPAP therapy (a breathing mask worn at night) can reduce pregnancy complications in women with mild to moderate sleep apnea during pregnancy. **You may be eligible if...** - You are pregnant with a single baby - Your pregnancy is between 14 and 22 weeks along - You have been diagnosed with mild to moderate sleep apnea (AHI score between 5 and 30) - You are 18 or older **You may NOT be eligible if...** - You are already being treated for sleep apnea - You cannot sleep in a stable place with access to a CPAP machine at least 5 nights per week - You have asthma requiring long-term steroids, or chronic conditions requiring oxygen - You have chronic kidney disease (creatinine above 1.3 mg/dL) - You have antiphospholipid antibody syndrome - You have active liver disease or certain other serious medical complications - You currently take prescription sleeping pills Talk to your doctor to see if this trial is right for you.