There are a few things you can do to help keep your baby warm at night and reduce the risk of SIDS. Make sure the room your baby sleeps in is not too hot or too cold - aim for a comfortable temperature between 68-72 degrees Fahrenheit. Use light blankets or sleep sacks instead of heavy comforters or quilts, and don't forget to dress your baby in warm nighttime clothing like footed pajamas. You might also consider using a white noise machine to help soothe your baby and keep them sleeping soundly through the night.