[Kaderin Triste]

Oh, it really wouldn't be that difficult to keep clean. I mean the scales can be wiped clean and the backside is yarn. In theory, the blanket could be thrown in the wash on the gentle cycle. Though the weight in that situation might be an issue. But water wouldn't hurt the sxales.
And knitted scale mail is lighter than regular because the scales are less dense and are held together with yarn and not metal rings, so I don't really think it will be too heavy to use.