Wear Em out & they'll sleep..

So we've all heard the brilliant theory, let a kid stay awake and wear themselves out and they'll sleep. Now I knew from friends that this doesn't work. And I read from experts that this theory is wrong and kids in fact sleep better when they have good sleep and routine.
But yesterday quite by accident we tested this old wives tale. We all have to learn the hard way sometimes. and we did. Em had two very short naps and stayed up till 10 pm. Short sleep on the way home and bamn woke up several times, screaming, on the middle of the night. And still woke up in the am at her normal time.
We are all tired today. Planning on some hopefully good naps and a good sleep.
Vacation is fun. We love being with our family and friends. But being off routine sucks!!!!