New bed system which can be attached to a hospital bed

There is provided a bed system that is simple to install on existing hospital beds and which does not require any modification of the existing bed. The bed system has a first and a second frame nested in a common pivot means, and actuators connected thereto in order to establish an angle formed between the frames, where they are rotatable about a longitudinal axis through activation of the actuators. The system is mounted on a base frame, which can be attached to an existing frame of a hospital bed.