Later: I was up for a few hours getting e-book library books. I went back to sleep eventually and slept from 6-something to around 9:00 a.m. Mom wants to go to Costco.
Mom and I went to Costco. Our trip was pretty successful, except that Mom didn't find the big container of chicken salad that she likes. We dropped off books that were due at the library, and Mom stopped in at the grocery store and then at CVS to pick up a couple of things. I had a late lunch, read for a bit, and took a nap. I thought it was Friday when I woke up, but I hadn't been sleeping that long. I was just very groggy.