insomnia.
last revised · reviewed 2026-07-05
Insomnia affects most women at some point in pregnancy — hormones disrupt sleep architecture in the first trimester, and physical discomfort, loo trips, and an active baby fragment it in the third. Sleep habits and daytime routines make a genuine difference, and it does not harm the baby.
what it feels like
Trouble falling asleep despite exhaustion, waking at 3am with a busy mind or an aching hip and lying awake for hours, or waking repeatedly for the loo. In late pregnancy, finding a comfortable position at all becomes its own project.
why it happens
Progesterone alters sleep cycles from early on, causing daytime drowsiness but lighter, more fragmented nights. As pregnancy advances, heartburn, a compressed bladder, leg cramps, a kicking baby, and the sheer geometry of a bump all interrupt sleep — with a mind that often chooses those quiet hours to run through lists.
what helps
- Keep a consistent bedtime and wake time, even after bad nights
- Wind down for the last hour: dim lights, no screens, a warm bath, a book
- Sleep on your side with a pillow between your knees and one supporting the bump — build the nest before you're desperate
- Deal with the usual suspects: eat earlier to limit heartburn, taper fluids before bed, stretch calves to prevent cramps
- If awake for more than 20 to 30 minutes, get up and do something quiet in low light until sleepy — lying there frustrated trains wakefulness
- Short daytime naps (before mid-afternoon) take the edge off without wrecking the night
- Daily exercise and daylight exposure deepen night-time sleep
when to call your midwife or doctor
- Insomnia with persistent low mood, anxiety, or dread — tell your midwife or doctor; perinatal mental health support is effective and worth having
- Loud snoring with gasping or pauses in breathing — possible sleep apnoea, which matters in pregnancy; mention it to your doctor
- An irresistible urge to move your legs at night — restless legs syndrome is common and your midwife can check your iron
- Exhaustion so severe it feels unsafe (for instance when driving) — call your midwife or doctor
This page is general information, not a diagnosis. When in doubt, call — no midwife has ever minded a careful question.
common questions
Is insomnia harmful to my baby?
No — the baby is not harmed by your broken nights; they sleep and wake on their own cycle regardless. Insomnia is exhausting for you, though, which is reason enough to work on it and to ask your midwife for help if it becomes relentless.
What can I take for sleep while pregnant?
Sleep habits and routine are the first-line treatment, and most sleeping tablets and herbal remedies are not recommended in pregnancy. If insomnia is severe, speak to your doctor or midwife rather than buying anything over the counter — they can advise what is safe for your situation.
Why do I keep waking at 3am pregnant?
Pregnancy sleep is lighter and more fragmented, so normal brief wakings — after a loo trip, a heartburn flare, or a position shift — become full awakenings, often with a mind that starts whirring. Keeping lights low, avoiding your phone, and getting up briefly if sleep won't return all help retrain the pattern.
read it in context
Insomnia tends to show up around these weeks of pregnancy:
related symptoms
- Carpal tunnel syndrome
Carpal tunnel syndrome — tingling, numbness, and aching in the fingers and hand — affects up to a third of pregnant women, usually in the third trimester.
- Heartburn
Heartburn — a burning feeling rising from the stomach towards the throat — affects up to 8 in 10 women at some point in pregnancy, most often in the second and third trimesters.
- Linea nigra
The linea nigra is a dark vertical line that appears down the middle of the belly, usually in the second trimester, caused by pregnancy hormones stimulating extra pigment in skin that was always there.
know what's normal, week by week
elara tracks your symptoms alongside your weeks.
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