At the moment I am sleeping about 11 hours at night. My mind tells me I need to full 11 hours but I suspect that isn't the case... it's just that I feel tired a bit more easily at night & first thing in the morning.

I sometimes take naps too, although I don't actually sleep just rest. They seem to have been getting less commonplace since I switched meds, which is promising.

I would say that my longer sleeping hours, early bed time & naps are all down to medication. Maybe not directly from sedation though but rather from low dopamine in part of my brain. At least that's my theory.