Watch using more battery than usual in sleep tracking
Last night, my battery drained way faster than usual when I was sleeping. Usually it drains about 30%.
Apple Watch Series 10
Question marked as
I got my Series 10 last Friday, paired it to my iPhone Saturday.
Sunday I power cycled it.
Monday I power cycled it.
Now it is giving me long battery life. Yesterday, before putting it on the charger near midnight, it had 68% charge. This morning, after sleep monitoring, it has 88%.
Right after you initially pair your Apple Watch, or you upgrade the watchOS version, the iPhone and Apple Watch are doing a lot of sync work. For the first 48 hours, power cycle it once a day, and in most cases it will return to normal.
If after 48 hours and 2 power cycles, it does not give you proper battery life, unpair, then pair again (also doing the 48 hour power cycles).
If that does not get the battery life back to normal, contact Apple support.