Quick tip for people who are doing the bedroom exercise in 2.8 Eevee. When rendering the scene, I noticed that the render was much brighter than the viewport. After some searching I found the culprit – the “Portal” lamp. It was used in Cycles to guide light into the room, but in Eevee it doesn’t seem to be supported (at least I didn’t find the option). Since the portal now acts as a normal lamp, you will need to disable it for rendering as well.
