My little girl is 6 months old and has been sleeping her own room for a couple of days and she has been fine. She used to nap downstairs with me, since she has been in her room I've tried putting her down for her nap in her room and she just won't go to sleep! I managed to get her to nap in there once but lasted about 15 mins. As soon I bring her back downstairs she falls asleep? Not sure what to do?