Why do I wake up at 3am?

You fall asleep without much trouble, then suddenly you're wide awake. The house is dark, the clock says 3am, and your mind starts running through tomorrow's list.

If this happens now and then, you're in good company, and on its own it's usually nothing to worry about. Here's what's going on, what healthdirect suggests when you can't get back to sleep, and how the Thrive Health Band tracks your nights so the Thrive app can show you your own pattern, so a conversation with your GP starts from what's really been happening.

Waking in the night is part of sleep

Sleep isn't one long, even stretch. healthdirect explains that it runs in cycles of about 90 minutes, each with REM and non-REM sleep. Between cycles you come close to the surface, and brief wakings are a normal part of the night. Usually you don't remember them.

The 3am waking that sticks is different. Something nudges you awake, you check the time, and your thoughts take over. At that hour everything feels bigger than it will by breakfast.

Why it often happens in the small hours

There usually isn't one cause. A few common ones tend to stack up:

A busy mind. healthdirect lists stress from work or money worries among the everyday causes of broken sleep. If your day has been full, the first unclaimed moment can arrive at 3am. Our piece on work stress and sleep goes into this.
A nightcap. healthdirect notes that alcohol might make you sleepy at first, but it can disrupt your sleep cycles and leave you with poorer quality sleep. It suggests avoiding alcohol for at least 4 hours before bed.
Caffeine later in the day. The Sleep Health Foundation says caffeine's effects can last 3 to 7 hours, it can take up to 24 hours to leave your body, and it can make sleep lighter and send you to the toilet more often in the night.
Warm nights and a restless room. A hot bedroom, a restless partner or early light can tip you awake. Our article on warm nights and summer sleep may help.
Getting older. healthdirect says older people spend more time in bed but sleep more lightly, in shorter spans, so waking in the night becomes more familiar with age.
Hormonal change. For women, the years around menopause often bring night sweats and broken sleep. Our piece on perimenopause, sleep and mood covers that in more detail.

When it's more than the odd night

healthdirect describes insomnia as trouble falling asleep, staying asleep or waking too early and not being able to go back to sleep. It's more common in women and older people.

It suggests seeing your doctor if you're having trouble sleeping along with problems with your mood, feeling restless in bed, or waking up not feeling refreshed. It also says a sleep diary is a good way to keep track and share what's happening with your doctor. That's the part Thrive can take care of for you.

What to try when you're wide awake

healthdirect suggests a few things, in the moment and during the day:

Get up rather than lie there. If you can't sleep, go to another room and do something relaxing, such as reading, until you feel tired, then go back to bed.
Stop checking the clock. Turn it away or move it out of the bedroom, so you aren't counting the hours.
Keep screens out of bed. Avoid screens in the bedroom, and for an hour before bed.
Keep your wake up time steady. Go to bed and get up at around the same time each day, even after a rough night, and avoid daytime naps.
Shift caffeine and alcohol. Keep caffeine to the morning, and cut back on alcohol.
Move during the day. Exercise regularly, but not late in the evening.

If you wake with chest pain, trouble breathing or feel suddenly very unwell, call triple zero (000). If worries in the night feel too heavy to carry, Lifeline is available any time on 13 11 14.

How Thrive shows your nights

The Thrive Health Band has no screen and sits on a woven TPS strap, so you can wear it to bed and forget it. Your nights appear in the Thrive by Optihealth app on iPhone or Android.

How long you slept, and time awake. Thrive shows your deep and light sleep and the time you spent awake each night. REM appears when Precise sleep is switched on in the app's settings.
Quantity, quality, regularity and timing. Thrive scores each of these out of 100. Quality reflects how continuous your sleep was, so a run of broken nights shows up there, while regularity shows how steady your bed and wake times have been.
Bedtime reminder. Thrive can remind you to start winding down, from 15 minutes to an hour before bed. It can use your own sleep pattern or a time you set.
Check-ins. You can log your mood, stress and energy, so a stressful week sits right next to the nights that followed it.
Today's Vitality. A score from 0 to 100 that brings sleep and recovery, your heart, Today's Load and your mood together. The Band measures your HRV itself, and our HRV explainer covers what that number means.
Your own normal. Thrive learns what's usual for you across nine areas of your health, from what the Band measures and what you log, so a run of early wakings shows up against your own history rather than a chart.

You can ask Ask Thrive questions in everyday language, such as "What time did my sleep start and end each night this fortnight, and how regular were my bed and wake times?" or "How did my sleep quality look on nights after I logged high stress?"

Thrive also keeps track right across your health, including meals and Food Fit, blood tests, medications and supplements and your medical history. When you're ready to see your GP, Ask Thrive can help you pull your sleep pattern together beforehand, and our article on using Ask Thrive before a GP appointment shows how. If you'd like someone else to see it, Thrive Loops lets you share selected information with a participating trainer, health professional or someone you trust. You decide what to share and with whom, and you can change or revoke access at any time.

Thrive isn't a diagnosis, and it doesn't replace your GP. It gives you a clear picture of your own nights to talk through together.

Before you buy

You'll need a compatible iPhone or Android phone, because the Thrive app is on the Apple App Store and Google Play, in Australia and eight other countries. The app stores are only for downloading the app, though; they aren't where you buy the Band or a Plan. You can buy at thrivehealthband.com, or at a participating World Gym Australia location or health and wellness clinic.

The Thrive Health Band is A$660 for the first year under the launch offer (usually A$740). That includes the Band, which is yours to keep, and 12 months of the Thrive by Optihealth app, My Health on the web, Health Fingerprint, Ask Thrive, Thrive Loops and your data, paid once upfront. Prices are in AUD and include GST. Free Australia-wide shipping during the launch offer (usually A$14.99).

Nothing renews automatically. After your first year, you can get a new band plus 12 more months for A$660, or keep your band and renew the Thrive Connected Plan for A$240 a year (A$20 a month).

You're also covered by a 12-month Thrive Care Warranty, and consumer guarantees under Australian Consumer Law always apply. See Returns if something is wrong with your purchase.

Common questions

Is it normal to wake up at 3am?

Brief wakings are a normal part of sleep. It's worth a closer look when you often can't get back to sleep and it's affecting your days.

What should I do if I can't get back to sleep?

healthdirect suggests getting up, going to another room and doing something relaxing, such as reading, until you feel tired, and not checking the clock.

Does Thrive show when I'm awake in the night?

Yes. The Thrive by Optihealth app shows how much time you spent awake each night, alongside your deep and light sleep, and REM when Precise sleep is switched on.

For more answers, see Questions.