At the present time I'm engaged in a bit of study about St. Gildas ~ I think I mentioned that the other day. Interesting that the St. Martin story also focuses on a cloak. Even though that's a bit hidden when you read about St. Gildas (or read his material), he wore a garment made of a single sheet of cloth ~ a GI ~ just like in the Far East and just like that GI in his name.
He slept on the ground.