How to Sleep During Pregnancy: Your Trimester-by-Trimester Guide

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Challenges Pregnancy
The bump, the bed, and the big sleep. Everything you need to know about getting rest while growing a tiny human. At Love to Dream™, we’re obsessed with sleep (obviously) and this guide covers what's happening to your sleep in each trimester and simple tips to help you actually get some rest.
Love To Dream
6 min read |
22 April, 2026

If you’re reading this at 2am, propped up by every pillow in the house while your brain does backflips with a million questions, you have come to the right place.

Between the vivid dreams, the bladder that now holds roughly a teaspoon, and a body that seems to have forgotten how “comfortable” works, sleeping during pregnancy can feel like a full-time job. So pop your swollen feet up, its time for a tea break as we unpack all things pregnancy sleep! 

Why Is Sleep So Hard During Pregnancy?

Sleep problems during pregnancy are incredibly common, especially in the first 12 weeks and again in the third trimester.

It’s not just in your head (though pregnancy brain is very real). Your body is going through a massive hormonal renovation. Progesterone levels spike in the first trimester, making you feel like a walking nap. Then as your bump grows, the physical challenges of finding a comfortable position make sleep feel like a game of pillow Tetris.

Common Pregnancy Sleep Problems

Frequent bathroom trips
As your uterus grows, it puts pressure on your bladder. This is especially noticeable in the first and third trimesters.
Heartburn and reflux
Hormonal changes relax the valve between your stomach and oesophagus, and your growing bump pushes everything upward.
Restless legs syndrome
That uncomfortable urge to move your legs that always seems to hit right at bedtime. According to the NHS, about 1 in 5 pregnant women experience it in the last three months of pregnancy.
Back pain and hip pain
The extra weight and shifting centre of gravity put pressure on your lower back and pelvis.
Baby's midnight gym session
Your little one deciding that 2am is the perfect time to stretch those limbs for an in-utero pilates session.

First Trimester Sleep (Weeks 1 to 12):

Why You're Exhausted But Can't Sleep

The first trimester is a strange one for sleep. You're more tired than you've ever been in your life (thanks, progesterone), but actually staying asleep can be surprisingly tricky.

Nausea, sore breasts, and those constant bathroom trips can all disrupt your night. The emotional rollercoaster of early pregnancy doesn't help either. Racing thoughts and frequent google spirals can leave you mentally and physically drained.

First Trimester Sleep Tips:

  • Nap when you can. Short rest periods during the day count are great top ups and just resting your body will feel great, even if you don't get a full sleep.
  • Eat something small before bed. Toast or crackers can take the edge off nausea. Peppermint and ginger lollies are also a mum hack that might help!
  • Stay hydrated during the day, taper off in the evening. This helps reduce those middle-of-the-night bathroom runs.
  • Low lighting in the evenings. Give your body a chance to wind down naturally.

Second Trimester Sleep (Weeks 13 to 26):

The "Golden" Window

Many women find the second trimester is when sleep improves a bit. The nausea has usually settled, your energy is coming back, and your bump isn't quite big enough yet to make every position uncomfortable.

That said, this is the stage where heartburn often kicks in and vivid dreams can start making an appearance (no, dreaming about buying groceries with a baby penguin is not just you).

Second Trimester Sleep Tips:

  • Start sleeping on your side. Now is a great time to get into the habit before your bump makes it essential.
  • A pillow between your knees can help keep your hips aligned and reduce lower back pain as your body changes.
  • Eat smaller, more frequent meals to help manage heartburn, and avoid spicy or acidic foods close to bedtime.
  • Try a wind-down ritual. A warm (not hot) bath, gentle prenatal yoga, or a book that isn't a terrifying parenting manual.
Dreamer Tip

A pillow between the knees and behind the back can be a great support for your back and bump

Third Trimester Sleep (Weeks 27 to 40):

Finding Comfort While Holding a Watermelon

This is where sleep gets really creative. Your bump is big, your bladder is squished, your hips ache, and your baby has decided that midnight is peak activity time. According to Tommy's, most pregnant women average just five hours of sleep a night by the end of the third trimester, so you are absolutely not alone in this.

Third Trimester Sleep Tips:

  • Build a pillow fortress. Now is the time to embrace the "more is more" philosophy. A pregnancy pillow or a few extra standard pillows to support your bump and back can make a real difference.
  • Keep your bedroom cool. Your basal body temperature is naturally higher during pregnancy (hello, internal heater). A cool room, breathable cotton pyjamas, and a fan can lead to deeper, more restorative sleep.
  • Elevate your upper body slightly if heartburn is keeping you awake. An extra pillow under your head and shoulders can help.
  • Gentle stretching before bed can ease restless legs and help your body relax.

What Is the Best Sleeping Position During Pregnancy?

As your bump grows, the "how" of sleeping becomes just as important as the "when." Tommy's, recommend sleeping on your side from around 28 weeks. Sleeping on your left side is often suggested as the ideal position because it improves circulation to the heart and allows the best blood flow to the placenta, kidneys, and uterus.

Can I Sleep on My Back While Pregnant?

As your bump grows, the "how" of sleeping becomes just as important as the "when."

The NHS and Tommy's recommend sleeping on your side from around 28 weeks. Sleeping on your left side is often suggested as the ideal position as it's believed to improve circulation to the heart and allows the best blood flow to the placenta, kidneys, and uterus. It also keeps the weight of your expanding uterus off your liver.

When to Talk to Your Midwife or GP About Sleep

While "tired" is basically the unofficial middle name of pregnancy, some things deserve a professional look. Research links ongoing sleep deprivation during pregnancy with higher risk of complications like gestational diabetes and preeclampsia, so good sleep is genuinely important for both you and baby.

Chat to your healthcare provider if you're experiencing:

  • Persistent snoring or gasping during sleep (which could indicate sleep apnoea)
  • Restless legs that keep you awake most nights
  • Extreme swelling or persistent headaches
  • Anxiety or racing thoughts that regularly prevent sleep
  • Consistent trouble sleeping that's affecting your daily life

They're there to help you. Never hesitate to reach out.

Looking Forward to the Big Arrival

Sleep might feel different for now and we can't lie that sleep will change for the better once baby is here but we can help you prepare. Newborn and postpartum sleep is a whole other ball game and when you've already run the marathon of pregnancy, the last thing you need is another sprint with no back up.

We've got you covered and and our signature zip-up swaddles and sleep essentials to help your newborn find their rhythm, so you can finally get back to finding yours.

Sweet dreams, mama-to-be. 🩵

Swaddle Up™

Our award-winning swaddle helps babies sleep better with arms up in a natural position.

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Frequently Asked Questions About Pregnancy Sleep

Is it safe to sleep on my back during pregnancy?

Sleeping on your back is generally considered safe during the first and second trimesters. After about 28 weeks, experts recommend switching to side sleeping because the weight of the uterus can press on a major blood vessel. If you wake up on your back, don't worry. Just roll gently onto your side.

A pillow under your belly and behind your back can be a comfortable addition to your pillow rotation.

Why should I sleep on my left side during pregnancy?

Sleeping on your left side improves blood flow to the placenta, kidneys, and uterus. It also keeps the weight of your growing uterus off your liver. That said, either side is fine. The most important thing is that you're not flat on your back after 28 weeks.

How many hours of sleep do I need during pregnancy?

Most health professionals recommend 8 to 10 hours of sleep per night during pregnancy, compared to the usual 7 to 9 hours for adults. Quality matters just as much as quantity, so focus on creating a comfortable sleep environment so what rest you do get, is the best it can be.

When does pregnancy insomnia start?

Pregnancy insomnia can start as early as the first trimester, with around 25% of women affected early on. It tends to get more common as pregnancy progresses, peaking in the third trimester when physical discomfort and frequent bathroom trips make it harder to stay asleep.

Do pregnancy pillows actually help?

Yes! A pregnancy pillow or even a regular pillow placed between your knees can help keep your hips aligned, reduce lower back pain, and support your bump. Many women find they're a game-changer from the second trimester onwards.

Key Takeaways

  • Understanding your sleep needs changes throughout pregnancy

  • Side sleeping is recommended from the second trimester onwards

  • Pregnancy pillows can provide essential support and comfort

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