I've had parents in the past ask me to wake their two year old after 2 hours because he won't sleep at night. I tried and he would not wake up...so I started just leaving him (he would frequently sleep 2.5-3 hours). Parents believed I was wakinghim up and never had a problem with his nighttime sleep again After that experience, I tell parents I will not wake children unless I need to wake them for snacktime in the afternoon so we can get on with our day (usually that means they have slept about 3 hours). I agree with others who have said above that this problem is in parents' heads. My own 2 and 4 year old nap really well and there have been times on weekends when they have gone down slightly later and slept until 5pm...they will still go to bed at 7:30 because that is their routine...zero issues. People are amazed, but it is all about routine and expectations and if you expect that your child is not tired and will not sleep...they won't! The same thing with morning wake-up times. I have so many parents telling me that their 2 year old keeps waking up at 5 or 6am and then the child is tired and grumpy all morning. Why are you letting your child get up so early? My own kids will sleep until 8am if I don't wake them up most days...they have been trained not to get up so early as it affects everyone.