Some of the comfiest things, I've found, are video games. For me they are the older ones, made at the end of 1990's until about the middle of 2000's. Here's my list of them.

Half-Life

I find that pretty much all of the games made on the goldsource engine (modified code of quake upon which the half-life is based) are top comfy. The first half-life games has lots of comfy moments and its expansions opposing force and blue shift are comfy too. All of them have really nice and warm colors and lighting and the older code makes the games smoother on modern computer hardware.