5 links have been added on this idea.
  1. Take a look at this coat designed for refugees and homeless individuals, which can be transformed into a sleeping bag or tent.
    https://www.theguardian.com/artanddesign/architecture-design-blog/2016/jan/21/wearable-dwelling-coat-tent-sleeping-bag-refugees-royal-college-art-london

  2. I found this on eBay!

  3. The Jakpak jacket is a popular choice among outdoor enthusiasts. It can turn into a sleeping bag or a tent.