An infant garment preserves body heat and facilitates access to a localized region of the body surface of a patient. The garment has a slit on the front that allows the region of the patient's body surface to be monitored and, if necessary, treated without requiring removal of the garment. The garment also has sleeves with cuffs that can be reversibly folded to cover or uncover the hand-openings in the distal ends of the sleeves.