The bed desk need only be a mix of a memory foam mini sofa and a gamer's sofa (which you can see here ( [login to view URL] ).
There will also be the ability to put this on as a sleep on any old chair, making it a 1 size fits all solution.
The bed chair should also have arm rests, which could have drinks stands, mobile charing and the like. A fold out desk for a small device can come out of it in similar fashion to this, where you can pivot on a hinge and then push into a small space: [login to view URL]
Small circuitry should exist for bluetooth phone/voice APIs, but also simple remote control control (to recline or incline).
Otherwise, that's it.