Baby sleep methods?

What methods do you use to get your baby to fall asleep? Or sleep through the night? My nine month old DD nurses to sleep and naps in my arms (apparently not the most practical thing to let her do). She only sleeps a couple hours at a time during the night, then comfort nurses right back to sleep... because of her weight, her doctors are wanting her to stop that.

my son never was a good sleeper but a crib toy helped some nights. we had this one

DS falls asleep in my arms before bed and I just lay him in his crib. Most of the time he sleeps thru the night but other times not. He has a stuffed animal toy he will wake up and play with then pass right back out.

I have to nurse him to sleep for the night and bounce him in the bouncy seat for naps. Sorry I don't have advice but just sharing sympathy with our exhausting methods lol.

My youngest we bought a small crib projector that played music. It was cute, projected little bears onto the ceiling and he fell asleep with the soothing music

DS is four months and I feed him to sleep and nap with him   He only wakes up once a night though and that's recent, he was sleeping through the night until he started teething.