1) try to detect dream like elements around you when you RC. Not just if your RC works but does everything look and feel correct.
2) If you have good control you can intentionally summon those things. If you do not, then it is hit or miss depending on the type of dreams you normally have.
3)the nap thing only works well early in your wake cycle, say the first six hours.
4) few people have SP that they can not break as soon as they are awake. It is nothing 99% of us need worry about.