It could be related ,it's hard to say.
I had that problem with my Remeron, I didn't have trouble going to sleep, but waking up it was so hard. And I always felt groggy and sedatied for about a week. After that it was easier.

<font color=red>~Sundance~</font color=red>

<font color=blue>"Never react emotionally to criticism. Analyze yourself to determine whether it is justified. If it is, correct yourself. Otherwise, go on about your business."</font color=blue>

<font color=black>Norman Vincent Peale</font color=black>