battery drain during the night

[chaosSP]

i left my phone charged at 67 percent during the night. this morning when i woke up the battery level was 30%. huge battery drain during the night... any tips on what could cause this? just for information stamina mode was enabled...

[Alexander1]

Perhaps you could charge your phone to 100 % before you go to bed and on the morning check what have drained the phones battery. Check under settings > power management > battery. Post a print screen here so we can see the result. 

[Ashroft98]

Probably you had Walkman playing in the background(with silent for media volume).Or you had accounts with auto-sync to ON.Have you checked the apps that run in the background?It can also drains the battery,

What you can do is:

1)Go to Settings->Apps->Running

2)Stop any unnecessary apps(exclude any service apps)

3)Charge it 100% leave it for 6 hours and compare how much battery was drained with apps stopped from running in the background.