Sleep and Running: How Rest Affects Your Performance

Sleep is one of the most powerful recovery tools, and it costs nothing.

Why sleep matters

During sleep, your body repairs tissue and regulates hormones that affect appetite, mood and energy. Poor sleep can make runs feel harder and may raise the risk of mistakes and injury.

How much do you need

Most adults do well on seven to nine hours a night. Some people need a little more when training hard.

Signs you are short on sleep

• Runs that feel unusually difficult
• Slower pace at the same effort
• Difficulty motivating yourself
• More cravings for sugary food

Habits that help

• Keep regular hours, going to bed and getting up at similar times.
• Limit caffeine in the afternoon and evening.
• Dim lights and reduce screens before bed.
• Keep your bedroom cool, dark and quiet.
• Avoid a very heavy meal close to bedtime.

Evening runs and sleep

Some people sleep well after an evening run, and some find it makes them wired. Try different times and see what suits you.

Early runs

If you run before work, going to bed earlier matters. Protect your sleep before you protect your alarm.

When sleep is short

On a bad night, consider running easier or shorter, or taking a rest day. Pushing a hard session on poor sleep is rarely worth it.

Tips

• Treat sleep as part of training.
• Note how you slept alongside how you ran.
• Persistent sleep problems may deserve a conversation with a doctor.

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