Dd is 8 months and the last 8 months shes been placed on her back end of cot etc. She can now roll and im finding she flips onto her tummy to sleep. I then flip her back onto her back. However last night i ended up flipping her at 11pm, 1am, 4am and 6am. She didnt wake once during the flipping. Dh did the 11pm flip. I know pfb etc but i dont know...is it safe to just let her sleep on her tummy now. Ive not had a baby before and the whole cot death worry is drilled into us. She puts her head to the side but is totally flat to the bed. Is that safe