I miss the sandman

My dd is 15 months and since 12 months has been sleepin in our bed .
We lay her down ( with us mainly me at 7:30 8 pm) she takes like half hr to n hr to fall asleep. N sometimes i can put her in her crib for about a couple of hrs then back in our bad for the night . she used to sleep all night 12 hr stretches then i messed it up by putting her in our bed . You ladies think 15 months is too early for a day be transitions. We can do the sleep training cause she makes her self vomit after like 5 min of crying ( i cant take the sleep training ) and dh works nights . She falls asleep at nap time on her princess couch sometimes for an hour. Her crib is in our room literally like 4 feet from our bed...i could take the one rail away and put it flush against my bed or buy the kid rails ...but i don't know if 15 months is too early should I just suck it up till she is a lil older . I love laying with her but I would rather her come into our bed in the morn and snuggle verse all night she is such a restless sleeper an i haven't had a real good night sleep in months for fear dh will crush her the sound sleeper he is or her getting up in the middle of the night ( which ad long ad she is in our bed wont happen lol)