Integrated sleeping support device for car seats

A sleeping support device for a passenger in a car seat (1) comprising two inflatable pillows (8,9) integrated in the backrest (3). The pillows are arranged in a compressed inactive position in modules (40) located within the backrest. First means is arranged to inflate the pillows to a use position with one pillow (8,9) extending from the backrest on each side of the head of a passenger sitting in correct position in relation to the seat belts. That after use of said pillows (8,9) second means are arranged to draw back the pillows to said inactive position, Operating buttons are arranged to allow the driver and/ or passenger to control said first and second means for bringing said pillows from inactive position to use position and vice versa.