Ans: I have already posted areply to someone else with a similar problem.
I am posting the same reply -
You can try to improve your sleep hygeine - i.e
Try to go to sleep and wake up at the sametime everyday — even on weekends and holidays.
Avoid consuming caffeine at least 6 hrs before bedtime. .
Make your sleeping environment comfortable.
One hour before bedtime, stop doing work or other mentally-challenging tasks.
Use your bed only for sleep or intimacy.
If you are stressed , relaxation techniques like yoga or meditation before bedtime might help.
Regular exercise, a balnaced diet and adequate fluid intake might help.
Can try taking melatonin 3 mg 1 hr before bed time.
If these measures don't work , you should consult a sleep specialist