Thanks, Glory. I tried that for a while but my dentist told me not to use gum as it encourages my mouth to be working. I could put in my night guard (against grinding damage) though. Thanks. Talking it over really helps!
I came back to say (1) there were a couple of SF hot chocolates in there and (2) I might swap my L for my afternoon S on the nights when I'm in charge of food. Don't know. I'll think about it.