Your baby's bedding should be seriously planned. Baby Bedding has been know to cause suffocation and there are certain safe practices you should follow when putting your baby bedding together.
There is research that indicates that soft bedding may cause suffocation. There is research on SIDS that even points to death by suffocation due to soft bedding using quilts, pillows, sheepskins, and comforters and such. It is recommend that a young baby, newborn, have a firm mattress with
Pretty good reference.
Very useful for those who are looking for a guide for buying baby beddings.