Crash protection device and its method

An inflatable curtain assembly (5) in a car comprises at least one inflatable curtain stored in its folded position along a first interface of the roof (2) and the side window (3) and continuing along a portion of a second interface of the roof (2) and the windshield (4), the curtain assembly (5) being bent in the vicinity of an upper end of an A-pillar (6) between the side window and the windshield, such that the at least one inflatable curtain in its inflated position is unfolded from said first interface downwards along the side window (3) and downwards from said portion of said second interface towards the dashboard (8) in that the human thus has a protection in case of collisions between body parts and hard structures in the region of said side window (3), said portion of the windshield (4) and an area there between during a crash.