All of those sound like valid reasons.
But, honestly, being worried about lack of downtime is a valid reason that is often overlooked.
I HAVE to have my downtime. Too much is too much, and you have to know your own limits. I joked at my old office that I was taking a 'mental health day', but, it was legit, when you have to decompress or you feel like you'll 'act out' at the wrong stimulous or continued stimulous... ~shrugs~
I'm actually used to working pretty long hours, but, it was always broken up among different types of things. Back in college, I would sometimes work three different shifts at three jobs in one day. BUT, only the first one was heavy on demanding customers (as a cashier at a big store), the second one was noisy, but, mellower (as a dishwasher, I was almost always alone in the dishroom, as the servers bussed their own tables and dropped their bins near the kitchen) and the third one was pretty chill (working in a truck stop with laid back customers and not too busy on my shifts, I could read or stock shelves and it was very relaxing).
I could NOT work multiple jobs of the same type today. Maybe customer support in the day, but, nothing noisier than editing at night.
Anyway, try not to feel guilty.