J have a 21 month old who has recently started to take up to 1.5 hours to get her to sleep at night. She normally naps between 1-3 during the day she could sleep forever so I need to wake her up at 3. She normally goes to bed between 7.30-8pm but recently she has been wanting to get up singing and crying it's driving me crazy. I have tried giving her a shorter nap of one hour and moving her nap time forward to 12 no Joy I tried taking getting her to be more active taking her to the park to wear her out which brought on no change. Any advice?