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DEMinSoCAL

macrumors 603
Original poster
Sep 27, 2005
5,447
8,503
I've got a MBP 14 and 16 (both M1 Pro) connected to a Samsung USB-C 4K monitor that charges the MBP. The MBP is in a stand, with the lid closed. It never sleeps on it's own.

I don't really like the lack of sleep control in macOS, as it only gives me a slider to adjust when to turn off the screen. What about sleep?
I have an external Thunderbolt m.2 NVMe SSD enclosure connected, with LED's that show that it is always powered. Could that be keeping the Mac awake?

If I choose to manually sleep (Apple Menu, Sleep), it goes to sleep, but then wakes back up after some amount of time.

I have my Samsung monitor plugged into a power meter and when the monitor is off but the Mac is idle (after hours), it shows about 15W. When I manually choose sleep, it's about 4W. But after a bit, I check and the meter shows 15W again so I know it's awake.

Ideas on how to get the Mac to sleep on it's own and stay asleep?
 
This is an ongoing issue with the M1 Macs in general and there are some other threads here that you may want to check out to see what people are coming up with as solutions or workarounds.

Hopefully, Apple with find a way to make Apple Silicon sleep a more robust solution.
 
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