Hi, I think we misunderstood each other, I understand the upgrade tool has nothing to do with sleep, and I understand that the laptop should be plugged in when upgrading (I always do this). What I am saying that the sleep is broken for me by all practical measures since upgrading to 20.10 and above, because the battery (even a new one) drains very fast (2 or 3 days) whereas before it would last at least between one and two weeks. So this is a regression/bug. I hope this is more clear. Thank! On Mon, 6 Dec 2021, 08:11 Chris Guiver,