3:15 am and I’m awake in the night again. This happens each month, a cycle of two or three restless nights when I wake up in the wee hours, who can say why—no noises in the house or outside, no headache or body ache or cramp. No need to pee. No mouth dried out. No snores from anyone in the bed next to me (no one in the bed next to me). No cat, no dog, no bird, no rabbit or hamster; no neighbor, no homeless wanderer in the alley rattling his basket.