GUIDE
Hormonal shifts, physical discomfort, frequent urination, and anxiety combine to make sleep elusive — especially in the third trimester.
You are exhausted but cannot sleep. It is one of pregnancy's cruelest ironies. Up to 78 percent of pregnant people experience insomnia at some point, but real strategies exist to help you get the rest you need.
Be prepared from day one
Pregnancy insomnia can mean difficulty falling asleep, waking frequently throughout the night, waking too early and being unable to fall back asleep, or sleeping but feeling unrefreshed in the morning. It is often a combination of all of these patterns, and it tends to be deeply frustrating when paired with the overwhelming fatigue that pregnancy brings.
In the first trimester, insomnia is often caused by hormonal surges, nausea, frequent urination, and the anxiety or excitement of early pregnancy. Progesterone, while sedating during the day, can disrupt normal sleep architecture at night.
In the third trimester, the causes shift to physical ones: it is hard to get comfortable with a large belly, back pain and leg cramps wake you up, you need to urinate every 1 to 2 hours, heartburn burns when you lie down, and the baby is often most active at night. Add in anxiety about labor, delivery, and parenthood, and it is a recipe for sleepless nights.
Insomnia can occur at any point in pregnancy but follows a general pattern. First-trimester sleep disruption is common but often improves in the second trimester when hormones stabilize and nausea subsides. The second trimester is typically the best sleep period of pregnancy.
The third trimester is when insomnia peaks. By weeks 28 to 30, most people are waking 2 to 5 times per night due to bathroom trips, discomfort, or leg cramps. By the final weeks, sleeping more than 3 to 4 hours at a stretch is an achievement.
Studies show that sleep quality declines progressively through the third trimester, with the worst sleep occurring in the final 2 to 4 weeks before delivery. This is partly biological — some researchers theorize that late-pregnancy sleep disruption prepares parents for the round-the-clock demands of a newborn.
You may not achieve perfect sleep during pregnancy, but you can significantly improve your sleep quality with consistent habits and smart environmental adjustments. The goal is to maximize the sleep you do get.
Go to bed and wake up at the same time every day. A predictable routine helps regulate your circadian rhythm. Create a 30-minute wind-down ritual: dim the lights, take a warm bath or shower, read a book, or practice gentle stretching. Avoid screens for at least 30 minutes before bed.
Sleep on your side with a pillow between your knees to maintain spinal alignment. A C-shaped or U-shaped pregnancy pillow supports your belly, back, and legs simultaneously. If heartburn is an issue, elevate the head of your bed by 6 inches. Some people also tuck a small pillow under the belly for extra support.
Drink plenty of fluids during the day but taper off 2 to 3 hours before bedtime. When you do get up, keep the lights as dim as possible — bright light signals your brain that it is time to wake up. A small nightlight in the bathroom is enough to navigate safely without disrupting your sleep hormones.
If back pain, leg cramps, or heartburn are keeping you awake, address those specifically. A warm bath before bed can ease back pain and leg cramps. Eating your last meal 2 to 3 hours before bed and elevating your head can reduce nighttime heartburn. Gentle stretching of the calves before bed can prevent leg cramps.
Progressive muscle relaxation, guided meditation, and deep breathing exercises can quiet an anxious mind. Start at your toes and slowly tense and release each muscle group up to your head. Pregnancy-specific meditation apps can guide you through calming visualizations tailored to your experience.
Pregnancy increases your basal body temperature, making you feel warmer at night. Keep the bedroom temperature between 65 and 68 degrees F. Use blackout curtains, a white noise machine, and light, breathable bedding. A cool, dark environment supports your body's natural sleep signals.
These symptoms can occasionally signal something that needs medical attention. When in doubt, call.
While pregnancy insomnia is frustrating, it does not harm your baby, and your body is remarkably good at getting the rest it needs even when sleep feels fragmented. Many people find that even small improvements — a better pillow arrangement, a consistent bedtime, or treating nighttime heartburn — make a meaningful difference.
If insomnia is significantly affecting your quality of life, talk to your provider. Doxylamine (Unisom SleepTabs) is considered safe during pregnancy and can help you get through particularly difficult stretches. Cognitive behavioral therapy for insomnia (CBT-I) is also effective and has no medication side effects.
Related guides that may help: pregnancy fatigue for daytime energy management, pregnancy mood swings if poor sleep is affecting your emotions, and pregnancy brain if sleep deprivation is adding to cognitive fog.
This guide is for informational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider with any questions about your pregnancy.
