I am having a 15 month old baby boy. His weight is 11 and height is arond 2 ft. Now my problem is, my son is very hyper active, he doesnt like to seat one place. He just want to run, play and do what he want to do. If I try to stop him to do something wrong he starts crying so badly. The main problem is he sleeps very less in a day. He sleeps only 2 hour in a day. In the night he sleeps for 8 to 9 hours. So I am very much worried about his sleeping duration. Does this much of sleep is enough for his age ?

What other things can I do to make his sleep longer then now ?