Need Sleep

How can I get Thomas to sleep through the night? He has never slept in a set pattern but lately has been sleeping more during the day and awake at night. I get up and check on him often to make sure he is not hungry, wet, uncomfortable or too hot or too cold. Every morning I ask myself, why am I sending him to school? Just so he can sleep? The real reason I send him to school is so I can nap. The couch at 20 minute little intervals does wonders. Don’t I sound old!! I bet I’m starting to smell funny too.