Struggling to stay asleep

Emma

My 5 month LO is waking early 4/5am in the morning and then may fall back to sleep for an hour then he's up for the morning. He also wakes about 5 times during the night. He won't go to sleep by himself, I breastfed him and rock him to sleep. I do not want to use the CIO. He won't take a dummy, but is there another sleep prop that I could use to help he fall back asleep during the night?