At Sidmouth festival this year, Chris Coe sang a fabulous song in a session. I want to learn it, and of course I've forgotten too much...

It was to do with homelessness/refugees. The chorus involved phrases like:

My hat/the sky is my roof
My coat is the walls of my house
My shoes...

I know this is the most limited smattering of lyrics ever, but I thought there was just a chance that someone might know what I'm talking about.

I've tried searching for all the likely combinations I can think of. No good.