Finding a way to add extra heat to our beds is something men have been doing since we stopped sleeping on the ground. From the earliest days of putting hot coals at the foot of the bed to today's modern electric devices, we're always looking for new ways to avoid having to climb into a cold bed at night. In the modern era, electric blankets have been the bed warming standard for about 40 years. But thanks to new technology and more durable materials, the electric bed warmer is taking center stage.