Dad's t-shirt is not a good fit...

CPSC Warns About Flammable Loose-Fitting Garments Used As Children's Sleepwear WASHINGTON, D.C. - The U.S. Consumer Product Safety Commission (CPSC) warns people not to put children to sleep in loose-fitting T-shirts or other over-size clothes made from cotton or cotton blends. These garments can catch fire easily and are associated with 200 to 300 emergency room-treated burn injuries to children annually. Loose-fitting clothing stands away from the body, making contact with an ignition source more likely. Loose-fitting, non-flame-resistant clothing allows an air space next to the body that helps keep the fire burning, possibly injuring children.