Super warm blanket

[WorldWideWords]

I am in the market for a ridiculously warm blanket (not electric). I'd love your suggestions please!

I have a small selection of biederlack German blankets, they are very soft and cosy with a bit of weight, but not too heavy and wash up lovely.
Most came from tk maxx here
Sometimes also found in dunelm, amazon and so on.

It was a bit chilly last night!