A baby's feeding bottle warmer comprising a bottle, a cylindrical enclosure provided with a clear sidewall with the sealed bottom end and an opening at the top, covered with the cap, capable of heating its contents at a certain constant temperature. The bottle also having a heating element embedded at the bottom end of the bottle, provided for effective heat distribution and accurate control of the temperature throughout the contents of a baby bottle. It is operated by the electrical power source and/or a battery.