The U.S. Consumer Product Safety Commission¬†smartly recommends that the only safe place for a baby to sleep is in a safe crib that is free of clutter (“bare is best”):

That means no pillows, no heavy quilts, no thick blankets, no pillow-like stuffed toys or other large stuffed toys and no child carrying devices, recliners or sleep positioners.

The CPSC has an excellent blog that provides important details.  You can read article here: