He already talks in his sleep (and laughs). I wouldn't be surprised if he sleepwalked. I do sometimes when I'm very stressed out or ill.

Thanks for sharing your experience! I'm hoping this is a rare thing caused in large part by him recovering from being ill (although he keeps loudly proclaiming I NOT SICK! this is a lie)/being stressed out by sickness and our work/life situation. A friend of mine, his kid got the night terrors several times a week for MONTHS at one point. AUGH.