How does pregnancy affect sleep?

A number of normal symptoms during pregnancy might affect or disturb your sleep, including:

• Nausea and vomiting (morning sickness)
• Frequent urination
• Physical discomfort, such as tender breasts and back pain
• Fetal movement
• Leg cramps
• Heartburn
• Snoring
• Irregular uterine contractions
• Shortness of breath
• Restless legs syndrome
• Anxiety about labor and delivery

Sleep disorders, such as sleep-disordered breathing, also can worsen during pregnancy.