A–Z Glossary

Obstructive sleep apnea

Sleep apnea involves pauses in breathing during sleep and may require medical evaluation when repeatedly observed in a baby.

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Search results for: Obstructive sleep apnea

Sleeping on your side: why it matters

Sleeping on your side: why it matters

Why sleep position changes breathing and comfort Sleep posture affects the mechanics of the upper airway, chest wall, and abdomen. When you lie on your side, the airway is often more stable than in a fully supine position, which is one reason side sleeping may reduce snoring and make breathing feel easier. For people with […]

Does lack of sleep harm the fetus

Does lack of sleep harm the fetus

What the evidence actually shows Most of the available research does not prove that sleep loss directly injures the fetus in a simple cause-and-effect way. Instead, it shows associations between maternal sleep problems and less favorable outcomes. A systematic review and meta-analysis reported significant links between sleep disturbances during pregnancy and preeclampsia, gestational hypertension, gestational […]

Is sleeping on back always dangerous

Is sleeping on back always dangerous

Back sleeping in pregnancy: the short answer No, sleeping on your back is not always dangerous. In pregnancy, the concern is context-dependent. Many people can lie on their back for short periods without any obvious problem, especially earlier in pregnancy. What changes over time is that the growing uterus can press on major vessels and […]

How often babies wake at night

How often babies wake at night

What counts as normal night waking? Infant sleep is organized into repeated sleep cycles rather than one uninterrupted block. Babies may briefly arouse between cycles, move, vocalize, or open their eyes. Some return to sleep without assistance, while others signal for a caregiver. Parents therefore may notice only some arousals, and reported waking frequency can […]