Sleep troubles

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Ok so through several unfortunate events my 4 mo daughter is having a tough time getting used to sleeping in her crib. Shes been sick several times and had to sleep in an inclined sleeper (per drs orders) or held. She also can roll over now so cant be swaddled but still startles a little bit so she has a hard time lying flat in a bed bc she jumps. She self soothes by rubbing my fuzzy robe or her fuzzy blanket. Problem is she obviously cant sleep with a blanket. I found a minky cribsheet do you think that might offer her some comfort? She loves the feeling of mknky and it comforts her but like I said obviously she cant take a blanket to bed