1.) Decrease your room temperature.you will sleep better if your room is cool
2.) Take a hot shower or warm your body before sleep.it will give you a good sleep
3.) Don't cover your head with blanket.if your head is kept cool you can have a deep sleep
4.) Smell some herbs before sleep.use lavander oil or use lavendar flavour face mask.
By following these steps you can have a good and deep sleep.it will increase your productivity if you have good sleep.
Thanks for reading and if you find it helpful upvote it.
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From @srinivask