Bare is best
The US Consumer Product Safety Commission provides free safety alerts, safety resources, posters, brochures, handbooks and other materials you can use to help spread consumer product safety information in your community. On their Safe Sleep page, you can find information and safety tips on cribs, bassinets, and play yards for infants, as well as videos to learn how to put an infant to sleep safely.
For more information about safe infant sleep, check out the Safe to Sleep® campaign that offers a number of materials for a variety of audiences, and Sleep in Babies that provides wide range of sleep-related information.