Here in Korea, almost every household has heated blankets and mattress toppers. Most are heated with wires, but some have elaborate hot water tubes running thro

Here in Korea, almost every household has heated blankets and mattress toppers. Most are heated with wires, but some have elaborate hot water tubes running through them. They come with their own thermostats and timers. Different parts of the bed can be heated to different temperatures to accommodate each person's preferences. Welcome to the future!