This is something I built for myself in my hidden underground base, but could fit into anyone's large build. It's a master bedroom fit for a queen (and/or king), complete with light switch so you can sleep in peace.
You shouldn't have to worry about monsters as they have to spawn further away than the size of the room, but I play on my small private server with monsters turned off. If monsters do attack when you hit the bed try closing off the entrance to the room with a door or something.
Blue cloth may be replaced with any color, yet I would suggest replacing it using the replace command in mcedit as doing it in world may break a redstone wire.
Tell me what y'all think!