Hi, Please consult a psychologist and nearest physician for a personal check. Night fall issue is mainly because of stress. Psycotherapy, yoga and meditation will help a big way. Please try guided meditation by Heartfulness.org. Please try following general treatment for 1 month - Dashmooladi kwath 10 ml + 2 tabs Chandraprabha vati early morning empty stomach. Avoid food for 30 mins after taking the medicine. Ashwagandha pak 10 gms with honey/cow's milk twice a day empty stomach. Ashwagandharishta 10 ml with equal amount of water before bed at night. Hope this helps!