In college, I had a roommate half the time. The other half I managed a single dorm room or, like the last two years, I lived off campus in an apartment. When I was married (briefly), my husband insisted on sharing a room :) so it wasn't my sanctuary. BUT the minute I got divorced I bought a new bed and found a new room and made it my cozy, comfy, safe place for just me.
My bedroom now is also a cozy, comfy, safe space just for me. I have a double bed that is the perfect size for me. I have a TV in there but rarely turn it on. I read, I internet, I play silly computer games and I sleep.
My bed making is simple. I use not top sheet. So I settle the pillow up against the headboard and straighten out the comforter. Done. And I do this before I leave for the pool in the morning. The rest of the room is tidy always. I put dirty clothes in the hamper and the clean ones are in the closet. It's a small room, not big enough to make a mess in.