view from a hotel window

I arrived in Copenhagen today for the Artificial Life conference.  A short flight from Stansted, then an easy metro trip to the hotel, which is close to the conference venue.  Everything is new, clean, and quite green:

view from my hotel window

The room itself is interesting.  It has a bathroom, kitchenette, oodles of storage space, a small dining table, and a sofa.  But ... no bed?

dining table and sofa -- but where's the bed?

The clue is in the black zigzag line.  A little investigation, and manipulation, revealed:

hmm

Well, that's a first. Let's see how I cope ascending, and, more importantly, descending...