There are a few reasons repeating the same quiet routine at night can help:
It can calm an overactive mind.
You can think, plan and prepare for tomorrow, so you don’t lie awake worrying about details when you go to bed.
By repeating a regular pattern, you can train your body and mind to unwind ready for bed.
Many activities people do in the evening can be overstimulating. So a bedtime routine helps you avoid doing those things and relax instead. - 2 hours ago