DS (28 mo) has started to refuse to nap on weekends. I WOH and he sleeps at daycare for 2 hours but will not on the weekend. I try to stick to the daycare schedule so his natural clock is ready for sleep. Today he was exhausted and yawning at noon but when I put him down, he just plays, reads books, etc. It ruins the rest of the day because he is so tired and grumpy. We do a gymnastics class on saturday mornings which should help get him tired. I have a loud fan in his room to block background noise. I try for hours to get him to sleep to no avail. I am at my wits end with it! It basically ruins the weekend because he is so grumpy we can't really do anything fun except in the mornings. Anyone experience this? Suggestions to help him sleep?