Hi jfocker. How long have you been taking the clonazepam? 4mg seems like a lot and it might make you sleepy. I took Effexor about 12 years ago and I remember sleeping about 2 or 3 hours a night. I also had these strange jolts throughout my body, especially in my arms and hands, when I was on Effexor. But I'm sure that everyone's reaction will be different. You probably need to tell your doctor about the sleeping if it does not change in the next couple of days.