We were faced with the choice of the Cybex Juno Fix or Phoenixfix Kiddy buying. When sample sitting in our business Sohnemann as he sat in the store together Cybex roared because he probably felt the impact shield as too unpleasant. No wonder it looked also only the head out of the seat. We had then been internally said goodbye to a purchase of a seat with impact cushion. But I was in contrast to my wife yet again to test out the Phoenixfix and lo and behold, the Phoenixfix has our little to our surprise immediately accepted because of the impact shield is not quite as bulky and the Small thereby probably has more upper body freedom. We take this seat now for almost 6 months and are very happy with the choice and would buy the seat definitely be back. The sleeping position we have not tried, as our son can sleep relaxed even in an upright position in Phoenixfix. When used correctly, the little one sits firmly and securely in the seat, also does not slide down or can by removing itself from the impact shield or press forward.