Sleep in Pregnancy: Best Positions, Insomnia and Pillows

What's normal by trimester

• First: heavy sleepiness, naps, and waking to pee.
• Second: often the best sleep of the pregnancy, though heartburn and vivid dreams can start.
• Third: frequent waking from peeing, heartburn, leg cramps, a busy baby, an aching hip, and racing thoughts. Most people sleep less well now; it doesn't mean something is wrong.

Positions

• From about 28 weeks, go to sleep on your side. Left or right are both fine.
• Back sleeping for long stretches late in pregnancy has been linked in some studies to a higher stillbirth risk, likely from pressure on large blood vessels. Waking up on your back is not a problem: just roll over. Your body usually wakes you if you're uncomfortable.
• Earlier in pregnancy, any position you like, including your stomach, is fine.
• Pillows: one between the knees, one under the bump, and one behind your back to stop rolling. A full-length body pillow or a wedge works too.

A practical plan for better nights

• Keep a steady wake time, even after a rough night.
• Wind down for 30-60 minutes: dim lights, screens off or across the room, a warm shower.
• Front-load fluids earlier in the day; ease off in the 2 hours before bed.
• For heartburn: eat dinner 2-3 hours before bed, and raise the head of the bed or use a wedge.
• For leg cramps: stretch your calves before bed and flex your foot toward you when one hits.
• Keep the room cool, dark and quiet. A fan or white noise helps many people.

Insomnia

• If you're awake more than about 20 minutes, get up and do something calm in dim light, then go back when sleepy. Lying there frustrated trains your brain to stay awake.
• Cognitive behavioral therapy for insomnia (CBT-I), including app or online versions, is the first-line treatment and is safe in pregnancy.
• Ask before taking any sleep aid, including melatonin, herbal teas or antihistamines.
• Worry at 3 a.m. is common. Writing worries down before bed, or a short breathing exercise, helps.

Sleep problems worth naming

• Restless legs: a creeping urge to move your legs at night, common in the third trimester. Low iron makes it worse, so ask for an iron check.
• Snoring, gasping or choking in your sleep: pregnancy can cause or worsen sleep apnea, which is linked to high blood pressure and gestational diabetes. It's very treatable.

Partners and co-parents

• Sharing a bed with a restless pregnant person is tiring for everyone. A temporary separate bed is a practical choice, not a sign of trouble.
• Good sleep habits now make the newborn weeks easier; see the newborn sleep guide.

When to check in

• Mention loud snoring, gasping, restless legs, or insomnia most nights at your next visit.
• Bring up sleeplessness driven by constant worry or low mood; it can be perinatal anxiety or depression, which is treatable. The National Maternal Mental Health Hotline is 1-833-852-6262.
• If you wake with a severe headache or vision changes late in pregnancy, contact your provider the same day.