The human body is not at all adapted to this twice-a-year changing of the clocks. It does not occur in nature at all. Everyone should just admit that it sounded good at the time, but is a stupid idea. There is no perfect solution for what isn’t even a problem. Pick one, preferably Summer Time, and keep it all year around.
The human body is not adapted to living by a clock. A natural life is waking up when you've had enough sleep, regardless of what time it is. An unnatural life is waking up when an alarm clock tells you to.