It looks fine to me? What's wrong with it? Many people are worried about falling out of the upper bed in sleeper cars. There's often a rail there. The "half cradle" offers the same protection against falling, while making it easier to get in from the foot end. It provides protection against light, noise and drafts.

The foot end is a bit narrower than the overall bed, which is also a smart use of space and, again, makes getting into the bed easier.

This is also the first sleeper cabin I've seen where the window seems to be parallel beside the bed as opposed to orthogonal at one end.