DS is 4 months and needs his paci to go to sleep for naps and night, and I think it's really starting to affect his sleep. He wakes up if it falls out, and obviously cant put it back in yet, so I'm up a lot at night putting it back in.

What age was your LO able to put it back in? How did you deal with it in the meantime if your LO woke up without it?? Did you have to sleep train or just rode it out until they were able to do it themselves?