"here is my problem with belsomra. i am a 50 year old male - 6&#039; 2&#039;&#039; 190lbs. i am currently prescribed the 20mg dosage and it seems to work okay some of the time. by accident i doubled dosed one evening - 40mg - and had the best sleep of my life. woke up refreshed after eight hours of sleep and had great energy and alertness the entire day. i feel i need a higher dosage for it to work for me."