Sleep Apnea in Pregnancy: New CHEST Guideline Clarifies
Quick Facts
Why Is Sleep Apnea a Concern During Pregnancy?
Obstructive sleep apnea occurs when the upper airway repeatedly narrows or closes during sleep, interrupting airflow and causing brief awakenings, oxygen fluctuations or both. Pregnancy can increase susceptibility through weight gain, swelling of upper-airway tissues, changes in respiratory physiology and disrupted sleep, although individual risk varies considerably.
Observational research has linked sleep-disordered breathing in pregnancy with hypertensive disorders, gestational diabetes and other adverse outcomes. These associations do not prove that sleep apnea directly causes every complication, because obesity, age and underlying cardiometabolic conditions may contribute to both. Even so, recognizing clinically significant apnea matters because untreated symptoms can impair sleep quality, daytime alertness and overall health.
How Is Obstructive Sleep Apnea Diagnosed During Pregnancy?
Common warning signs include loud habitual snoring, witnessed pauses in breathing, gasping during sleep, morning headaches and excessive daytime sleepiness. Fatigue and poor sleep are also common in pregnancy for many other reasons, so symptoms alone cannot confirm obstructive sleep apnea. Screening questionnaires developed for the general adult population may not perform identically in pregnant patients.
Objective assessment may involve overnight polysomnography or a home sleep apnea test, depending on clinical circumstances and local resources. Clinicians must also consider other explanations for breathlessness or disrupted sleep, including asthma, anemia, reflux, nasal congestion and pregnancy-related cardiovascular conditions. The new CHEST guidance is intended to support consistent decisions while reflecting the limitations of the available evidence.
How Is Sleep Apnea Treated During Pregnancy?
Positive airway pressure therapy uses gentle air pressure delivered through a mask to prevent the upper airway from collapsing during sleep. It is an established treatment for obstructive sleep apnea in adults and does not require medication exposure. Mask fit, nasal symptoms, pressure comfort and consistent use all influence whether treatment works effectively.
Pregnancy-specific evidence remains less extensive than the broader adult sleep-apnea literature, particularly regarding whether treatment prevents obstetric complications. Care should therefore be individualized according to symptom burden, test findings, coexisting hypertension or metabolic disease, and patient preferences. Persistent snoring, witnessed breathing pauses, choking during sleep or severe daytime sleepiness should be discussed with an obstetric clinician or sleep-medicine professional.
Frequently Asked Questions
No. Nasal congestion and other pregnancy-related changes can cause snoring without obstructive sleep apnea. Loud habitual snoring accompanied by breathing pauses, gasping or marked daytime sleepiness warrants medical assessment.
Positive airway pressure, commonly called CPAP, is a noninvasive treatment that keeps the airway open during sleep. A clinician should select and monitor treatment according to the patient's sleep-test findings, symptoms and pregnancy-related health conditions.
Testing decisions should be based on symptoms, risk factors and clinical judgment. The new guideline addresses how clinicians can approach screening and diagnosis while recognizing that evidence for universal testing remains limited.
References
- American College of Chest Physicians. Clinical practice guideline on obstructive sleep apnea in pregnancy. CHEST. 2026.
- Medical Xpress. Guideline on sleep-disordered breathing in pregnancy released. July 2026.
- Kapur VK, Auckley DH, Chowdhuri S, et al. Clinical Practice Guideline for Diagnostic Testing for Adult Obstructive Sleep Apnea. Journal of Clinical Sleep Medicine. 2017.