Windows 11 PC sometimes won't 'wake up' from sleep mode

[canetoad]

3. IMO sleep mode

Is a real PTA. Keep in mind that apart from Windows, you may have a load of programs running in the background - Office, Acrobat updater, Skype, various virus thingies - to name a few. These all have to shut down then restart themselves without incidents whenever you enter/leave sleep mode.

If your laptop is new, there is likely a pile of stuff running that you wouldn't even suspect, so it may be worthwhile having a look at that and uninstalling stuff you'll never use and turning off 'Run at Startup' for the rest.

My last two desktop computers ran almost continuously for ten and twelve years respectively. They were only ever shutdown when a restart was required and neither had sleep mode activated. Sure - shut down monitors, speakers and other stuff but you might find your computer is a lot more reliable without sleep mode.