DS seems to be dropping his nap too he is 3 in July, he does it at daycare no problem, so he has one every few days. Today Tuesday is the problem because DD has swimming at 5:00 and without nap he falls asleep in car on way, even though is only 15 mins journey, and if v you wake him he is intolerable. Last week I left for swimming an hour early, they both fell asleep had an hour but were awful on waking. Not sure what I will do today maybe go for a drive now. For us the car always works so if all else fails and a nap is desperately needed then try to plan day with a car trip in the middle (DD doesn't mind sitting in car on driveway luckily)