Spike, the darkness is all part of the theme; it changes as you progress through the house. Glenn, it's a sadistic house.
Here's the bedroom as viewed through the lounge. Notice the oddly bright couches. This was a design idea that I tried doing on the floor of the entrance but it didn't work out well. It's a slight difference from the plain glass that was pioneered well in BB6 but has been overdone in recent years.
This is the only nice bed (and is a double) in the house, but I don't think that you'd enjoy seeing this creepy picture every time you wake up or lie down in bed.