Very Tired

My daughter Alli came home from school very tired today. I believe it is a combination of the very hot and humid weather and how busy they keep her. Alli is 13 and has been diagnosed with Autism. She loves to go to school every day and loves seeing all her friends. About two hours ago she fell asleep on the living room floor and is still laying there sleeping. This is very unusual for Alli to sleep through supper. Alli is the type of child who can eat 24/7 and never get filled up, however tonight her sleepiness has won out.