Mine is pretty comfy. The main thing I think is to have good lighting which means warm light, not cold and soulless white light. In my desk lamp I have an incandescent bulb that has more filaments that a standard bulb you'd buy and it glows a berry rich amber color. I don't always use it, because I have a regular soft white bulb in the floor lamp in my room, but sometimes late at night I'll use it. Berry comfy.
Also I have some houseplants and my room looks like it could be from the 90s which is also /comfy/. I like to relax sometimes and listen to some records.