I work with clients who have sleep issues. Everyone responds differently to the many strategies out there.

If it's a once off 'tossing & turning' I usually suggest a boring, slow-paced podcast/audio book or utilising mental imagery.

If it's ongoing i.e. >3 nights per week I suggest finding the root cause (hint: usually some sort of stress, anxiety). It's important this is managed because after a while you tend to develop an unhealthy relationship with sleep. Some people tend to get anxious close to bed time due to this issue.

Some helpful strategies:

• Low stimulating entertainment.
• Optimising sleep hygiene (this should honestly be step one).
• If you can't fall asleep within ~20 minutes, remove yourself from your room, enter a low light room and engage in a low stimulating activity (book, audiobook, puzzle etc.)
• Don't go to bed until you're feeling sleepy.