Thanks, @justy - I do think that people are getting confused between ART and pacing, and I'm trying to determine what ART actually is in practice. I was assuming (perhaps wrongly) that the amount/timing is different according to what level of function you've already got. I'd been hoping that three hours a day of bedrest (plus extra rest scattered throughout the day) might do it for me, but maybe not.
I'll read that Sarah Myhill thing - thanks!
I still think it is an individual thing. The amount of energy each of us has varies wildly, so it would stand to reason that the amount of rest needed for each of us to have excess energy left would differ. As I said earlier, I think the aim is to rest more than you need to. Take what you would usually need to do in order to avoid a dip then add a lot of rest on top of that. I think some complete downtime without any stimulation is worthwhile.