Dress infants and children warmly for outdoor activities. Several thin layers will keep them dry and warm.
Avoid cotton clothing because it won’t keep the kids very warm. Stick with wool or other fabrics. Waterproof pants and jackets are great top layers because they don’t let the wetness seep into the other clothing. And don’t forget warm socks and boots to keep feet dry and a hat to top it off.
The rule of thumb for older babies and young children is to dress them in one more layer of clothing than an adult would wear in the same conditions.
Make sure your kids have a snack before going out. The calories will give their bodies energy in the cold weather.
And protect your kids’ faces with sunscreen. Even though the idea of a sunburn in January can seem odd, snow can reflect up to 85% of the sun’s ultraviolet rays.
Blankets, quilts, pillows, afghans and other loose bedding may contribute to Sudden Infant Death Syndrome (SIDS) and should be kept out of infants' sleeping environment. Sleep clothing like one-piece sleepers is preferred.
If a blanket must be used to keep a sleeping infant warm, it should be tucked in around the crib mattress, reaching only as far as your baby's chest, so the infant's face is less likely to become covered by the bedding.
~the American Academy of Pediatrics(AAP)