I just want to say that my son is 5 and in SK and THEY STILL TAKE A NAP AT SCHOOL! Not sure if all schools follow this but this is how it's done at my son's. i think its like 30 mins, my son doesnt sleep but he rests. So if one of my clients tried to get out of nap time they would get a firm reminder that they will not be able to get out of nap time for a LONG time!