I got a 15 week old girl and my partner and grandparents are struggling to get her to sleep its always a fight for them. Grandparents each have her a day a week but not over night yet and have done since she was 6 weeks old with no problems. But the last few times they have had to bring her home early cos she won't settle for them and is get upset due to being over tired. My partner works away most weeks so is only gone on weekends and she's start not settling for him either which is upsetting him cos up till then she was a daddy's girls. I would love some advise as this is my first child and I don't feel like I can relax when someone else has her anymore.