We changed out my sons crib for a mattress on the floor, and it’s like staring all over again, and it’s tough going. One factor is that we lose the leverage of a time-out when he’s naughty at bed time, since getting out of the bed for any reason would be a win for him. Instead, we need to work within the constraints of the situation, and help him learn to stay in bed on his own. We’ve only just begun, but it’s as draining as any new creative endeavor can be: you just keep trying things until something works, and you may never be sure why it works or what combination of things got the successful result.
People are fuzzy: complex and hard to study effectively. A lot of creative work is fuzzy, too.
That makes it hard, but it also makes it fulfilling.