How can you stop the process of insomnia?

Try excellent sleep: Hygiene first. Retire & rise same time each day. Keep bedroom dark & cool & use only for sex & sleep. Turn off tv. No naps. Exercise regularly but not in late evening. No caffeine for 6 hrs & no alcohol or tobacco w/i 2 hrs of sleep. Keep dinner moderate sized & finish at least 2 to 3 hrs before sleep. Can try warm milk, chamomile tea or melatonin along w light reading, warm bath or lavender scent.

Insomnia: There is acute insomnia or chronic insomnia, acute insomnia is less than 3 months and chronic is more than 3 to 6 months please identify the stressor that caused this, it could be move to a different time zone, financial, relation stress etc. Google sleep hygiene you may need short term meds like ambien cognitive behavior therapy for insomnia works best according to studies.