Hiya, I'm sorry you're having a hard time. It seems to me, that you are so worried about your lo getting overtired, that you're scared to increase her a time. And because her a time is short, her naps are short, and by the end of the day she's overtired anyway. Also - I have used a carrier a lot with dd2 - when she was small, she would happily sleep 2 hours in there, but now she's older (4.5 months) she will very rarely sleep more than 45 minutes in there. I guess she's just not as comfy in there as she used to be. What do you think?