Abstract: A bed system and related method is disclosed, the bed system comprising a bed frame and a mattress assembly pivotably mounted on the bed frame for pivoting the mattress assembly about a pivot axis to form a pivot angle between the mattress assembly and a longitudinal axis of the bed frame, the mattress assembly comprising aback part, a seat part and a leg part, wherein aback normal of the back part and the pivot axis forms a back angle, a seat normal of the seat part and the pivot axis forms a seat angle, and a leg normal of the leg part and the pivot axis forms a leg angle, the bed system comprising a controller device, wherein the controller device is configured to: move the mattress assembly from a first position to a second position, wherein, in the second position, the pivot angle is a second pivot angle in a range from 30 degrees to 80 degrees, and wherein the leg angle is a second leg angle larger than 45 degrees.