Why you’re hungrier after a bad night’s sleep (and what helps)

Some days the hunger starts before you’ve even got out of bed. You’re tired and foggy, and by mid-morning the biscuit tin seems to be calling your name.

If that happens after a bad night, it’s worth knowing that your body is behaving exactly as expected.

What short sleep does to your hunger

Two hormones do a lot of the work in regulating appetite. Leptin tells your brain you’ve had enough to eat. Ghrelin tells it you’re hungry.

When you’re short on sleep, studies show leptin tends to drop and ghrelin tends to rise. So you feel hungrier and your fullness signal gets quieter. On top of that, a tired brain leans towards quick energy, which is why sugary and starchy foods look so appealing.

Everyone’s appetite shifts this way after a short night. Knowing that takes a lot of the guilt out of a hungry day.

The mum factor

If you have young children, broken sleep often isn’t a choice. Night feeds, bad dreams, sick kids, early risers and a partner’s potential snoring all add up.

You can’t always fix the sleep itself. What you can do is plan for the day after, so a rough night doesn’t turn into a rough week of eating.

How to look after yourself the day after

Eat a proper breakfast. It’s tempting to skip it when you’re rushing, and that sets you up for a mid-morning crash. Something with protein, like eggs or Greek yoghurt, will keep you steadier.

Keep a filling snack within reach. The afternoon dip hits harder when you’re tired. A piece of fruit with a handful of nuts is far easier to reach for when it’s already in your bag.

Get outside in daylight. A short walk in the morning light helps you feel more awake and supports your body clock for the following night.

Go easy on caffeine after lunch. Coffee helps in the morning. Too much later on can make the next night worse, and then the cycle repeats.

Plan an easy dinner. Tired evenings are when the takeaway menus come out. Having something quick in the freezer, or a meal you can make half asleep, takes that decision off the table.

Be kind to yourself. You’re likely to be hungrier than usual. Feed yourself properly and move on.

Small changes for better nights

When you do have some control over your sleep, a few habits help.

Try to keep a similar bedtime most nights, weekends included. Put your phone down half an hour before bed, or at least out of arm’s reach. Keep the bedroom cool and dark. If you drink alcohol, notice how it affects your sleep, since it often makes the second half of the night more restless.

None of these need to be perfect. One earlier night a week is a good start.

Sleep is part of the plan

When women come to me wanting to lose weight, they usually expect to talk about food. We do. We also talk about sleep and stress, because both show up on the plate.

Looking after your sleep is one of the kindest things you can do to improve your eating habits. On the nights you can’t, looking after the day after counts as much.

If you’d like a hand putting this into practice, it’s exactly the sort of thing we work on together inside The Habit Reset.