A skylight window for being installed in a roof of a building, the skylight window comprising: a window frame having four frame side members (10, 11), a window sash having four sash side members supporting an insulating glazing unit having multiple layers of glazing (5c, 5e, 5d), said window sash being movable in relation to the window frame between an exterior open position and a closed position of the skylight window, a motor-driven actuator comprising an actuator motor and an elongated lifting element connecting between the frame and the sash for moving the sash between the open position and the closed position, said elongated lifting element having a top end and a first position in which the skylight window is in the closed position and a second position in which the skylight window is in the open position, said IGU having an exposed interior major surface for facing an interior of the building in an installed position of the skylight window, the exposed interior major surface being of an interior pane of the IGU, and an exterior major surface facing in a direction opposite to the interior of the building towards an exterior, a height direction extending substantially perpendicularly to at least one of the major surfaces (5b, 5g) of the IGU in a closed position of the skylight window, and a lateral direction extending in parallel with the exposed interior major surface of the IGU in the closed position of the skylight window, wherein at least the top end of the lifting element is at or above a height level of the interior major surface of the IGU in the height direction in the closed position of the skylight window, and characterized in that the motor-driven actuator is positioned between the IGU and the frame in a direction parallel with the exposed interior major surface of the IGU in the closed position of the skylight window. a window frame having four frame side members (10, 11), a window sash having four sash side members supporting an insulating glazing unit having multiple layers of glazing (5c, 5e, 5d), said window sash being movable in relation to the window frame between an exterior open position and a closed position of the skylight window, a motor-driven actuator comprising an actuator motor and an elongated lifting element connecting between the frame and the sash for moving the sash between the open position and the closed position, said elongated lifting element having a top end and a first position in which the skylight window is in the closed position and a second position in which the skylight window is in the open position, said IGU having an exposed interior major surface for facing an interior of the building in an installed position of the skylight window, the exposed interior major surface being of an interior pane of the IGU, and an exterior major surface facing in a direction opposite to the interior of the building towards an exterior, a height direction extending substantially perpendicularly to at least one of the major surfaces (5b, 5g) of the IGU in a closed position of the skylight window, and a lateral direction extending in parallel with the exposed interior major surface of the IGU in the closed position of the skylight window, wherein at least the top end of the lifting element is at or above a height level of the interior major surface of the IGU in the height direction in the closed position of the skylight window, and