A neck rest for the seats of automobiles comprising a fixed support member and a fixed cushion member enclosing the fixed support member and two rods connected to the support member, the rods being adapted to be accommodated by sleeve members in the back rest of the seat, a second support member for a movable cushion member which is movably supported by the first support member whereby the movable cushion member can be moved between a position wherein it is accommodated by the fixed cushion member and an extended position and vice versa in the extended position the movable cushion member is moved relative to the fixed cushion member towards the head of the person seating on the seat, and actuating means for the actuation of the movable cushion member into the extended position, characterized by the further features: The second support member is pivotably supported on the first support member about a lower horizontal axis, the actuation means include spring means which bias the second support member, a controllable locking means retains the second support member in the extended position relative to the first support member, a third support member is displaceably supported on the second support member between a lower and an upper position, the third support member is biased towards the upper position by second spring means, a controllable second locking means retains the third support member in the lower position, the second locking means being unlocked when the second support member has attained a predetermined pivot angle and stop means between second and/or third support member and first support member to prevent a pivoting of the second and the third support member towards the first support member when the second and third support member have attained their extended position.