You never want your baby to be too hot! Overheating can make infants restless, cause heat rash, and raise the risk of SIDS. Of course, you should not overdress your baby or overheat the room, whether she’s swaddled or not.

To Avoid Turning Your Baby Into a Hot Potato:

  • Your best bet is to keep the room at 68° F to 72°F 9 (20°C to 22.2°C).
  • Check the ears and neck. If the ears are red and hot and the neck is sweaty, your baby is too warm. Dress her more lightly or cool the room.
  • Don’t over-bundle with thick blankets, extra layers of clothing or hats. (Hats are problematic because they can slip over the face.)
  • Never use electric blankets or heating pads. These overheat babies and expose them to electromagnetic radiation.
  • In hot weather, use just a diaper and light muslin swaddle. Sprinkle on a dusting of cornstarch powder—never talcum powder—to absorb sweat and prevent rashes.


Happiest Baby’s SNOO Sack, made of 100% organic cotton and mesh, is specifically designed to prevent overheating. It's also the easiest and safest way to wrap your baby. Learn more.

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