Any recommendations for hotels in Digne-Les-Bans?
Not a destination often discussed here. Have you looked at Tripadvisor?
The Hotel Central was on my short list because it's a well priced 2 star hotel that gets good ratings on Booking.com. I ended up changing my route so never stayed there, but you could check it out further. edit: rooms were <$100/night and had ensuite baths and free wifi.
We did enjoy a visit to Digne and Haute Provence over ten years ago. I looked for our hotel but didn't recognize it on the Trip Advisor site. I would go with TA at this point. They all look pretty basic or rustic except the first one on the list, which is in a different price range.