The seat is just great. The seat can be turned when the child is sleeping. However, it depends on the car how well that works. Depending on the direction, the door is there or the front seat. We have looked at many seats and tried many and this seat has definitely been the best choice.

No, i.e. yes but not so fast, you would have to loosen the toptheter at the back of the car seat, then the child seat can be turned. Only in the backward position can the seat be turned easily without adjusting the top tightener.
My daughter also sleeps well in the forward position and her head does not tilt forward.