Sleeping with stuffed animals?

Anyone’s babe already getting attached to a stuffed animal or anything. We’re noticing that if we give her her unicorn when she cries in the middle of the night it helps her soothe herself. Only thing is we get worried about her suffocating with it or something? Anyone’s babies sleep with something at night now? She’s just in a halo sleep sack and then her little puppet blanket unicorn type thing.