Thanks for your reply, Gently. I don't think I have really experienced what you are describing, but it sounds sort of similar and thanks for clearing things up!

Hypnagogic jerks are when you wake up suddenly just as you are falling asleep. You often dream that you are falling and then suddenly jerk yourself awake. They happen to people sometimes when they sleep normally. I only included them in my side effects of the medication because they happened several times during the first week that I was taking Zoloft, and that was a lot more than usual.