Cardboard Cot: Prevention of Moderate or Severe Hypothermia in Preterm Infants Assigned to Open Crib

Infants with an estimated gestational age \< 36 6/7 weeks at delivery who have been in an incubator in the newborn ICU for at least 24 hours in settings where an incubator is available, or who are delivered in a setting where an incubator is not available, will be randomized to either standard protocol of open crib or mylar-lined cardboard cot for the duration of the hospital stay. Axillary temperatures will be taken 1 hr, 6 hrs, and 24 hours after being placed in the cot or crib, and then once every 24 hours. All other care is provided as standard of care.