My 8.5 month mainly only wants to sleep on me. She was an excellent sleeper and self-soother (on her own, nothing we did) until around 7 months when she dropped from 3 to 2 naps, started crawling etc. We recently took a long flight where she only slept on me and since then has wanted that to continue. I'm usually able to easily transfer her once asleep to her pack n play but in the middle of the night the transfers are more difficult and she wakes up more easily. Any suggestions on how to help with this? Thank you.