It really brings us to the question about rest and recovery. Is R&R overstated?
no imo its essential.
the more i train, the more my body demands downtime. naps for an hour when i can on my lazy days, and a solid 7 hrs a night at least.
your body will let you know when it need sleep. if your dragging your ass around all day, and feel like you need a nap and you can have one take one.
i have always believed you repair when you sleep, based on my own experiences. i have trained body parts earlier in the day, gone to bed with them feeling 'numb' and woke up feeling normal. to me this means im repairing at night while i sleep.
bodybuilding is more about listening to your body and giving it what it needs, than it is about anyhting mechanical ie sets, reps frequency etc