Need suggestions for alternative sleeping system

[Highlander]

I am not sure that I can help here, but there maybe a clue in the way clothes were worn up here years ago

Before the Victorians developed the Kilt as we know it today,... the Scots had what they called the `great Kilt`, it was a tweed garment that covered the bottom and was thrown over your shoulder during the day,.... and wrapped around you to sleep in,... they would roll in the wet grass to insulate it

Now I am not saying you should go out and do that, but Tweed is still one of the better materials against wet and cold, its still worn by stalkers today

Now I dont own anything tweed,.. so I cant give a personal reference for tweed