Do not struggle to sleep, and the sleep.would come back... As you know it cannot be brought about by conscious effort
you may read this write up on insomnia
https://www.practo.com/healthfeed/beat-insomnia-get-your-peace-back-18885/post
Next Steps
May be consult a hypnotherapist
Health Tips
https://www.practo.com/healthfeed/beat-insomnia-get-your-peace-back-18885/post