"cozy" and "comfy" - Are they interchangeable?
Do they mean the same?
How would you use these 2 words?

Question

"cozy" and "comfy" - Are they interchangeable?
Do they mean the same?  
How would you use these 2 words?

Answer

You would use cozy to describe an environment or space, such as a room or cafe shop.

You would use comfy to describe an object such as a couch, wool jacket, or teddy bear.

Answer

They can be used interchangeably at most times, however, "comfy" is less formal because it is just a short way of saying "comfortable."

[Cozy] - 1. Giving a feeling of comfort, warmth, and relaxation.
"Your home is very cozy."

[Comfy] - 1.   Giving comfort or physical relief.... AND 2. At ease.
"Wearing this sweater makes me feel so comfy."