Can't Sleep in Late Pregnancy? Is Your Body Really Practicing for 3 a.m. Feeds? How to Sleep a Little Longer

It’s 3:15 a.m. You’re up for your third pee of the night. Back in bed, you toss left, then right. Your belly is so big you can’t find a position, the baby is kicking in rhythm, and the person next to you is sleeping peacefully. Then someone tells you, “That’s good, your body is practicing waking up to feed the baby.” You don’t know whether to laugh or cry.

We’re not here to tell you to just put up with it. Let’s look at what is actually keeping you awake in late pregnancy and fix it one thing at a time, because a lot of it really can get better, even if you won’t sleep as long as you did before pregnancy.

Is your body really practicing for 3 a.m. baby care?

Quick Answer: It’s a sweet idea, but there is no clear evidence for it. The main causes medical sources describe are concrete physical ones.

Cleveland Clinic says insomnia affects about 25% of pregnant people in the first trimester, rising to about 80% in the third trimester. Sleep Foundation estimates that about two in three people in late pregnancy have trouble sleeping. Both sources agree on the culprits: hormones, a bigger and heavier belly, frequent peeing, reflux, cramps, back pain, baby’s movements, and worry about birth and becoming a mom.

Once you know the culprits, you can tackle them one by one.

1. Frequent peeing: move your drinking to the daytime

Quick Answer: Drink enough from the morning on, then cut back in the 1 to 2 hours before bed. You don’t need to cut water all day.

Your growing uterus presses on your bladder, so it holds less. Cleveland Clinic recommends avoiding drinks in the two hours before bed. But it’s hot in Thailand and pregnant moms still need plenty of water, so the trick is to shift when you drink, not reduce how much you drink over the whole day. And empty your bladder fully before you get into bed.

If peeing burns, is difficult, or comes with a fever, tell your doctor. It could be a urinary tract infection.

2. Reflux and heartburn: smaller meals and a raised head

Quick Answer: Eat smaller meals more often, finish dinner a while before bed, and raise your upper body with pillows.

Sleep Foundation explains that digestion slows down in late pregnancy, so heartburn comes on easily when you lie flat. Try this:

• Eat small, frequent meals instead of a big meal at night
• Avoid very spicy, oily or sour food in the evening. Save the som tam with pickled crab and pla ra for lunch for now
• Use pillows or raise the head of the bed so your upper body is slightly higher

Some antacids are fine in pregnancy, but always ask your doctor or pharmacist before you buy one.

3. Back pain and no comfortable position: let pillows do the work

Quick Answer: Sleep on your side, with a pillow between your knees, one under your belly and one behind your back.

We’ve covered sleep positions and pillow setups in detail in Do pregnant women have to sleep on their left side only?. In short, after 28 weeks start sleep on your side, left or right is fine. Here we’ll just add a few things for back pain.

• Gently stretch your back and hips before bed, for example cat-cow on a mat
• Put a flat pillow under your belly so it doesn’t pull on your back
• A mattress that’s too soft lets your back sink. Try a firmer topper or change the angle you sleep at

4. Cramps and restless legs: stretch your calves before bed

Quick Answer: Gently stretch your calves before bed, and when a cramp hits, pull your toes toward you.

Sleep Foundation says up to about 1 in 3 people in the third trimester have restless legs, a tingly feeling in the legs that makes you need to keep moving them. Calf cramps are also common.

• Stretch your calves for 2 to 3 minutes before bed
• When you get a cramp, slowly pull your toes toward you, or stand up on a cool floor
• If restless legs keep you from sleeping often, tell your doctor so they can look for the cause. Don’t buy extra vitamins or mineral supplements on your own

5. Caffeine and phone screens: break the cycle of poor sleep

Quick Answer: Finish coffee or tea before the afternoon, and put your phone down before bed.

Cleveland Clinic recommends stopping caffeine about 8 hours before bed. Remember that Thai tea, green tea and some cocoa brands also contain caffeine (see how much is okay in How much coffee can you drink while pregnant?).

And let us confess on behalf of a lot of moms: scrolling through forum threads on “how much does natural birth hurt” at midnight is a big one. Both the screen light and the content wake your mind right up. Try leaving your phone out of reach for one night.

6. Worry about birth and the baby: write it down before bed

Quick Answer: Write your worries on paper before bed, then take them to your doctor or a prenatal class.

Phyathai 2 Hospital recommends that moms take a childbirth preparation class to ease the worry that keeps them awake, and the NHS suggests relaxation techniques before bed. Pick what works for you.

• Write a list of what’s on your mind, like “haven’t bought the car seat yet”, and tell yourself you’ll deal with it tomorrow
• Breathe slowly: in for 4 counts, out for 6, for about 5 minutes
• Listen to soft music or nature sounds

But if the worry is so heavy that you feel sad or scared most of the day for more than 2 weeks, it may be more than just insomnia. Read Depression during pregnancy: the signs that are often missed.

7. Awake at night and can’t get back to sleep: don’t fight the ceiling

Quick Answer: If you’ve been tossing and turning for more than about 20 minutes, get up and do something quiet in dim light, then go back to bed when you feel sleepy.

If you lie staring at the ceiling for a long time, your brain learns that bed is the place for worrying. Get up and read a paper book, or quietly fold the baby’s diapers. Come back when you feel sleepy.

When you go back to sleep after waking in the night, remember to start sleep on your side, just like at bedtime.

8. Make up for it in the daytime without ruining your night

Quick Answer: Napping is fine, but keep it short and not close to bedtime.

Cleveland Clinic recommends naps of no more than about 30 minutes and light exercise earlier in the day. The NHS suggests avoiding long afternoon naps if you have trouble sleeping at night. If you’re still working and your body is starting to struggle, talk to your boss about leave or working from home in the last stretch, so you can plan enough rest.

What about sleeping pills?

Quick Answer: Don’t buy them on your own. That goes for sleeping pills, drowsy antihistamines and herbal sleep aids. Always talk to your prenatal doctor first.

Cleveland Clinic explains that many sleep aids haven’t been tested enough for safety in pregnancy. Whether to use medication is something your doctor has to weigh, benefits against risks, case by case.

Call your doctor or go to the hospital if…

Quick Answer: Ordinary insomnia isn’t dangerous, but if you have any of these symptoms too, don’t wait for your next appointment.

Go to the hospital or call the labor ward right away if

• The baby is moving less than usual. Don’t wait until morning (read How to count baby kicks)
• You have regular, rhythmic contractions, your waters break, or you’re bleeding
• You have a severe headache, blurred vision, pain or tightness under your ribs at the top of your belly, or sudden swelling of your face and hands (this could be preeclampsia)
• You have pain, swelling, redness or warmth in one calf
• You have serious trouble breathing, or chest pain

Tell your doctor at your next appointment, or call for advice first, if

• You snore very loudly, or your partner notices you stop breathing for moments while asleep. Sleep Foundation says this is linked to preeclampsia and gestational diabetes
• You itch a lot at night, especially on your palms and soles. This is something doctors want you to tell them about quickly
• Restless legs keep you from sleeping almost every night
• Lack of sleep is affecting your daytime life, and driving or working doesn’t feel safe
• You feel sad, hopeless or very anxious almost every day. If you have thoughts of harming yourself, call the Thai mental health hotline 1323, available 24 hours

Tonight you may still wake up to pee at 3 a.m. like always. But if you get one more hour of sleep in a row, that’s a win. Rest as much as your body lets you, and don’t feel guilty about napping at all.