Hi I had gone through your query. sleep hygiene is the choice of treatment for irregular sleep wake cycle. That includes Certain routines and lifestyle modification will help you like Fix sleep schedule and stick on it No day time sleep Exercise that makes you fatigue Stress free activities and meditations Avoid alcohol and smoking Avoid heavy meal in dinner Avoid tea cofffee soft drink at night Use bed when you feel sleepy Reading till you feel sleepy No talking or use mobile in bed Calm and cool bed room Alll of this will help you to restore good sleep besides this there are some medicines like benzodiazapine and zolpidame which are useful in treat sleep problems. But proper psychological evaluation is needed before taking any medicines. Many a times sleep problem may associated with psychological problem like stress,anxiety,depression etc. So consult psychiatrist and get help. I hope i have answered your query. Thank you.