Hi Emma Hey, like I said in my post, I'm not necessarily recommending tummy sleeping... maybe run it past a midwife or the paed that does discharge exams. It'll give you peace of mind. I personally think that providing a non smoke environment is the biggest thing... and good ventilation... and then not over heating... and then Breast Feeding as a respiratory health guard. There are so many factors for SIDS... but this one (I think) is one you can be a bit flexible on more than the others. Just my opinion.