Worked fine a few days. Now back to same problem again. Hoping 14.4.2 will work it out.

Latest iOS update (14.4.1) seem to have sorted out the problem for me.

How are you guys doing after 7.3.2 update?

Same here. Apple Watch 3. Before update I got from fully charged 1,5 day with sleep tracking 2 nights and 1 PT session. Now I am down to under 50% from just one night (8 h sleep). Absolute disaster!!!