Question Battery Issues whilst off?

Hi All,

Quick question to see if anyone else has noticed this at all?

Last night my watch was on 57% after a day of usage which I thought to myself, Great if i turn my watch off over night it will last me the next day aswell,

But upon turning my watch on this morning, my battery had dropped from 57% down to 23%,

Has anyone else noticed or had this happen?

Thanks!