The present invention provides an incubator in which there is no concern of a user feeling pain or injuring their arm, even if their arm makes comparatively hard contact with an upper end of baby guards when the user has placed their arm inside an infant accommodation space. The baby guards are formed with a protrusion and have sufficient strength as a guard configuration body at an outer periphery of the infant accommodation space, and the width of a region inside the baby guards where observation by the user is slightly inconvenienced does not become particularly large. In the incubator, at least one of the baby guards includes the substantially rod shaped protrusion configuring an upper end of the at least one baby guard when in a substantially upright state that is substantially upward.
