We found a great article for safe sleep habits for baby as well as the importance of giving your baby tummy time. Too often parents are afraid to give baby tummy time, on the contrary, it is vital to ensure your baby meets those devolpmental milestones required to crawl, walk, etc.
http://www.healthychildren.org/English/ages-stages/baby/sleep/pages/Back-to-Sleep-Tummy-to-Play.aspx
Enjoy!