I'm concerned the last 2 days mom has slept almost all day and that is not like her at all. Any suggestions?

My mom has been pretty good on being up all day and then going to bed but recently she started staying up till late in her room then these last 2 days she has slept most of the day and evening and got up at 12AM. She would usually stay awake all day. But she had been falling asleep standing up at the counter or eating breakfast. It's crazy.

She talks non stop in her sleep!!