This is a non-woven blanket with lots of pockets. Slide disposable heat pads into the pockets, and the whole blanket becomes a evenly warming heated blanket.
When the pads are used up, just pull them out and put in new ones–the blanket stays.
The pads do the heating, the blanket does the reusing.
No washing, no plugging in. Put it wherever you’re cold.
Stay warm–don’t replace the blanket, just the packs.