I was on Effexor for 3 1/2 months, gradually building up to 300mg per day. I was on 300mg per day for 8 weeks and it did nothing. Since taking Effexor I did have trouble sleeping. My psychiatrist gave me Seroquel and Remeron which I take 1 hour before I go to bed. Once in bed I pass out instantly and I sleep for about 5 hours. I love those five hours as it is only peace I get. I now take Cipralex.