The Inventum HN138i is a single electric underblanket with extra foot heating zone. With the switch you decide which of the 3 heat settings you use. Moreover, the screen of the switch has snooze light, so you can also use it in the dark. After 3 hours of use, the HN138i automatically stops heating if you have not switched it off yourself. To wash the fleece blanket, unplug the cord and put it in the washing machine at 30 ° Celsius.