1 yr old ds just wont sleep. he has 1 half hr nap in the day n goes to bed as soon as he is tired. only sleeps for half hr n then is up ready to play for 3hrs. i tried controlled crying for one night n the next day ds was ill wit croup so dont feel confident to do it again. nothin will settle him n he is happy wen he is awake but this goes on till 11.30 n im at the end of my tether with it. dh will help but sometimes ds wont have him. any suggestions or advice would b great.