Hi Dolores,
I travelled to Boston for my radiation treatments from western Vermont. It was a 3 1/2 hour drive so I decided to stay in Boston during the radiation treatments. In retrospect, I probably could have driven back and forth myself for the first 3 weeks but once the effects of the radiation started to build, I was very grateful to be living in Boston close to Mass General. I still went home for the weekends until the end of week 5 when I couldn't do much but stare at the ceiling.

I'd suggest making the arrangements to stay in Cleveland now, so you won't have to hassle with it later and then let Ken decide whether or not he's up to the travel. I assume you can always cancel reservations.
Best wishes for a successful treatment. - Sheldon