Sorry, I'm not sure I'll be much help. Just wanted to let u know that my ds did the same thing. We were suggested to cut his nap. We cut it down to 2 hrs. He was sometimes sleeping up to 3 hrs. We also increased his activity level. We went to the park and a walk every day. We were also told that it might have been a verbal growth spurt. Ds would take 1-4 hrs to fall asleep when he used to fall asleep in 10-15min. He struggled off and on for about a month and it just passed. Just wanted u to know that u r not alone...