Braxton Hicks at Night: Why Your Bump Goes Rock Hard in the Dark

You're finally drifting off. Then your whole belly turns to stone.

Hard as a basketball under your pyjamas, your breath catches, and your brain does the thing it does at midnight: Is this it? Is this labour? Do I wake him up?

If that's you, breathe out. Night-time tightenings are one of the most common reasons women in the third trimester sit bolt upright in the dark, and most of the time they're Braxton Hicks. Pregnancy, Birth and Baby describes them as practice contractions that tone the uterus ahead of birth, and notes something worth knowing: they're more common at night.

Here's why they show up when you lie down, how to tell them from the real thing, and exactly when to stop reading and ring someone.

Who to actually ask

We make pillows. Anything to do with contractions, movements or bleeding is a question for your maternity unit, and they take calls around the clock. That number should be in your phone by 28 weeks. If it isn't, save it now.

Monique at The Middee Society is a practising clinical midwife specialist who teaches childbirth education, and if the "is this labour?" question is one you'd like to walk into with more confidence, a class is worth it.

Why they come at night

We're not clinicians, so here's the practical picture rather than the physiology lecture.

You've stopped moving. During the day you're distracted enough to miss mild tightenings entirely. At night, still and quiet, you notice everything.

You've been on your feet all day. Lots of women find tightenings are worse after a long day standing, a big shop, or chasing a toddler.

You're a bit dehydrated. Pregnancy, Birth and Baby lists staying hydrated among the things that can ease Braxton Hicks. If you tapered your water in the evening to avoid night wees, you may have overdone it.

Your bladder's full. Pregnancy, Birth and Baby also lists weeing as something that can settle them. A full bladder sits right against the uterus.

The baby's having a party. Third-trimester babies love a 10pm workout, and a big stretch or shift can set off a tightening.

Braxton Hicks or the real thing? A quick comparison

This is the question you're actually asking at 1am. Here's how Pregnancy, Birth and Baby and Healthdirect draw the line.

The line that matters most: Braxton Hicks don't get stronger, longer and closer together. Labour does.

When to stop guessing and ring

Ring your maternity unit or midwife straight away, any hour, if:

• You're under 37 weeks and having regular tightenings, period-like cramps or pelvic pressure. Pregnancy, Birth and Baby is explicit that contractions before 37 weeks are a call-immediately situation.

• The tightenings are getting stronger, longer and closer together, and they're not easing with rest, water or a change of position.

• Any bleeding, or a gush or steady trickle of fluid.

• Your baby's movements change or slow down. Don't wait to see. Don't assume babies "go quiet before labour". Call.

• Constant pain that doesn't ease between tightenings.

And if you're not sure, ring anyway. Midwives would much rather talk to you at 2am than have you lie there worrying. It's genuinely part of the job.

Settling Braxton Hicks so you can get back to sleep

Once you're confident it's practice and not the real thing, these are the moves. They're the same ones Pregnancy, Birth and Baby suggests.

Drink a big glass of water. Slowly. Give it fifteen or twenty minutes.

Go and wee. Even if you think you don't need to.

Change position. Roll to the other side. Or get up and pad around the bedroom for a few minutes. Braxton Hicks usually ease when you move.

Warmth. A warm shower or a wheat bag on your lower back or belly. Healthdirect specifically mentions a warm bath or shower for easing the discomfort.

Then settle properly. Once you're back in bed, the thing that keeps you asleep is not having to fight for a comfortable side-lying position. That's what our Pregnancy Pillow is for at this stage: the front piece takes the weight of the bump so the muscles across it aren't working, and the back wedge stops you rolling flat. It won't stop a tightening. It does make the twenty minutes afterwards much easier to sleep through.

The bigger picture

Every startled 1am wake-up is a small rehearsal for the fact that, quite soon, you'll be up at 1am for a different reason. Learning to notice what your body's doing, act on it, and call someone when you're unsure is precisely the muscle you'll need in a few weeks.

For more on the last stretch, we've written about why sleep matters so much in the third trimester and about adjusting your pillow setup as your bump changes.

The short version

A rock-hard bump at night is usually Braxton Hicks: irregular, uncomfortable rather than painful, and settled by water, a wee, and a change of position. If they're getting stronger, longer and closer together, if you're under 37 weeks, if there's bleeding, fluid or a change in movements, ring your maternity unit. Any hour.

Frequently Asked Questions

Can Braxton Hicks hurt?

They're usually described as tight or uncomfortable rather than painful, but late in pregnancy they can feel like a firm period cramp. Pain that builds and won't ease is the thing to call about.

How many in an hour is normal?

Several in an evening is common. If you're getting more than four to six in an hour and they're getting stronger and more regular, particularly before 37 weeks, ring your maternity unit rather than counting further.

Does lots of Braxton Hicks mean I'll go into labour early?

No. Frequent practice contractions don't open the cervix and don't mean your baby is coming early. They just mean your uterus is doing its warm-ups.

Should I wake my partner?

If you're ringing the hospital, yes. If you're drinking a glass of water and rolling over, probably not. Though if you want company at 1am, that's a fair reason too.

The information in this article is general in nature and intended as comfort support only. It is not medical advice. Always consult your midwife, GP, or a qualified healthcare provider for guidance specific to your situation.