My little girl (8 weeks) has slept in her own room since she was 3 weeks old. She currently sleeps 7-9 hours and I wake up if she even squeaks loudly, and check on her - she usually just seems to be dreaming. She's putting on weight and thriving. I remember very heated debate about this on MN when I was pregnant, so just wondering whether people think it's ok, given she seems to be happy enough.