Premature and low-birth-weight newborns are particularly exposed to a risk of hypothermia. Warming techniques are therefore needed to
maintain the newborn’s body temperature. Warming mattresses provide external conductive heat and, if required, can be combined with other
warming devices (such as radiant warmers and closed incubators). The present manuscript reviews the effectiveness of warming mattresses
and the potential risks of hyperthermia when these mattresses are combined with other devices. It is essential to
a) standardize practice for this care technique within healthcare institutions, and
b) continuously measure the newborn’s body temperature during mattress use.