Olive used to fall asleep in the carrier when she was younger, but we haven't used it the past couple of months since it's so hot. She's also used to sleeping in her crib or stroller, so I don't know if she'd fall asleep in the carrier.
I'm thinking I may need to sleep train her to fall asleep in the carrier! It would make traveling a lot easier.
How old is your LO and do they fall asleep in their carrier?