Yes, looked at older data and its always the same.
O/c I do have movement values of up to 100 too during the day so that's not the entire range, but the only range that applies to me sleeping.
Sleep value was 19, the small peak at 01:10 was 23 and the big peak at 3 was 56. Dont ask me why I was up in the middle of the night :/
Bottom Graphs are from recorder, upper one is Health app. Thought it interesting how the same data looks different giving the different aggregation levels (60s vs 10m)