Does every spouse / domestic partner become a bit of a detective? I wake up in the morning, come upstairs, and figure out what's been up the night before: a son up late, a daughter slipping on her headphones to watch something on one of her devices.
Last night, if I'm not deceived, at about 4 am, my wife got up with postnasal drip and a bad a sore throat, gargled salt water, fumbled around in the medicine cabinet for a Benadryl, then went back to bed, very unhappy with her lot.
That's the working hypothesis, anyway. When she gets up, we'll see if I'm right.