Always closest to the wall. Don't care which side that is. So we only ever swap when the room is different and the wall is on the other side. I feel safer that way. Whenever we are staying in a hotel, I automatically take the "safe side" . Dh knows and always says: "i guess you're taking THAT side?" Haha I'm weird. We'll have to change that once the baby arrives. There's no room on my current side for a bassinet. Le sigh...

Ps: if the walls are the same distance on both sides, I take the side furthest away from the door. You know. So dh gets stabbed first. I'm such a loving wife. Bahaha He doesn't seem to mind being my human shield... i'm awful.