Is anyone else stuttering more when tired?

Is anyone else stuttering more when tired? Is anyone else experiencing a stronger stutter when tired? For example, in the morning I can't really speak fluently somewhat the same after a shorter or longer nap. However if I'm rested, I do stutter nonetheless somewhat, but much less (at least IMO). PS: My stutter isn't that bad, though. On a scale of 1 to 10, 10 being extreme stuttering and 1 not stuttering, I'm somewhat a 3 or a 4.