Sleep Wake Failure: Reboots only after upgrading to High Sierra

I have spent the last month dealing with the sleep wake failure ordeal.


When High Sierra was released I took the upgrade like I always do. When my iMac goes to sleep I will be in the other room and can hear my system rebooting. The startup sound plays twice. Then the apple logo appears on the screen with and progress bar (as if something were installing) Once High Sierra starts it displays a message "Your computer was restarted because of a problem. "Sleep Wake Failure"


I have contacted Apple support on several occasions with no luck.

I have unplugged the cord - removed it from the computer for 15 seconds to reset the smc

I have reset the NVRAM

I have backed up my system using time machine and used disk utility on internet recovery to erase my iMac

I have done a fresh install of Mac OS (High Sierra) with Time Machine backup and a separate time without a backup

I have started in safe mode

Mac OS High Sierra 11.0.3

Even after doing all these tasks my iMac still reboots when in sleep mode.


I have had my iMac for several years and this has never happened before. Now it cant stop happening.


Any help would be greatly appreciated.

iMac, iOS 11.0.3

Posted on Oct 27, 2017 9:43 AM

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Posted on Nov 16, 2017 2:58 PM

Is yours with the stock SSD?


After discussions with OWC and others, it does seem like Apple has seriously mis-calculated their power management capabilities.


We resolved the issue by opening up terminal and running:


sudo pmset standby 0


This disables standby which, in most cases, kicks in at about 3 hours into sleep. This will cut a lot more power to more of the system. And this is why it has issues coming back alive after a long (+3h) sleep. You actually might still have long-boot issues when rebooting or cold booting, but at least you can not have these ridiculous wake issues.


You should be good ... Try it and see.


Apple has yet to acknowledge any of the issues anyone has with their 2012-2015 MacBook and MacBook Pros. I know multiple people that Apple has charged for replacement SSD when it is obviously an engineering flaw.

198 replies

Dec 8, 2017 2:40 PM in response to McBeave

I started having problems with 10.13.2.

Prior to that, nothing.

Second time in two days.


Not happy. And not sure what to do other than hope they fix it.


Meanwhile I have another problem with Safari. Certain web pages consume 100% of the CPU despite having nothing running on them. The same page works fine in Safari on my wife's laptop and using chrome in my laptop. So another mystery. I might need to do a recovery install.

Dec 10, 2017 3:08 AM in response to sronco

I am probably going to regret this but I have not had an issue since I did an NVRAM reset.


Therefore, I expect that now that I have said this publicly, it's likely to fail the very next time I wake away from my laptop for more than 20 minutes.


The fact that some people had it on 10.13.1 and others didn't see it until 10.13.2 leads me to believe it's not a simple software issue from a specific release.

So give the NVRAM reset a try. It's easy unless you have a firmware password (like I do). Google NVRAM reset and you'll be good to go.


Good luck!


PS: I'll be back in 30 minutes to say Never mind ;-)

PPS: I only just noticed that the original post includes the fact that the author had already tried an NVRAM reset. Oh well...

Dec 11, 2017 10:13 AM in response to tolgaguyer

So 3 calls with Apple support - clean install - SMC and NVRAM reset (several times) - restore of High Sierra again...

Take a fresh user - NOTHING WORKED! - Still not waking up (have to restart and send reports to apple)


VERY SAD - the worst upgrade ever (and I did all since Mac OS 8.1.....


So apple now offered that I could go to an apple store at the Genius Bar.....Looking forward to the stories they will tell me...


COME ON APPLE - fix this BUG!!!

Dec 11, 2017 11:26 AM in response to Hlohner

As much as it might seem like I was being a wiseass, I was in fact not :-)


By you, I meant your computer.


And the reason I asked is that this bug (at the top, anyway) is about laptops that are supposed to go to sleep, but instead, crash and reboot with an error message.


So if you are having trouble getting your laptop to wake up ... you have a different problem.


My laptop has indeed been waking up under High Sierra for several months, including throughout the beta program and now. The only problem was that a few days ago it started crashing when going to sleep (or waking up from sleep - I was never there to see it happen) so that when I returned to the laptop, it had rebooted on me.


Now that I shutdown my computer all the way AND performed an NVRAM reset, I have not seen the problem. But ... I already cannot remember whether that has been one or two days.


So again - if you cannot get your laptop to wake up ... well you have a different problem. Maybe you have a laptop that's going into hibernate mode, which is a much slower sleep AND wake process. So you might think it's failing whereas it's just trying really hard.


So tell us more about your laptop in case we can help you better than Apple Support.

Dec 11, 2017 11:43 AM in response to Jonathan Payne1

no matter - as long it is useful I appreciate your help 😉

here without power cable plugged in:

System-wide power settings:

Currently in use:

standbydelay 10800

standby 1

halfdim 1

hibernatefile /var/vm/sleepimage

powernap 1

gpuswitch 2

disksleep 0

sleep 1

autopoweroffdelay 28800

hibernatemode 3

autopoweroff 1

ttyskeepawake 1

displaysleep 1

tcpkeepalive 1

acwake 0

lidwake 1

Dec 14, 2017 9:53 AM in response to oli1274

So you keep saying, Oli, but what is the point of having a laptop or any computer with wifi capabilities where you don't use the wifi? And I don't know about you, but my computer is nowhere near an ethernet cable.


Meanwhile, like others, I have not had this problem reoccur since the first two times. All I did was a NVRAM reset and I have been fine ever since.


I hope others are as successful as I am.

Dec 14, 2017 3:58 PM in response to oli1274

Hi. Like I said disabling WiFi do not work. I already did that. I disable WiFi at night and in the morning when I wake my iMac same error happens. I can’t find a pattern for this error. For example, after made a fresh install of macOS 10.13.2 this error never happens during one week and with WiFi always enable. After that sometimes I had 2 Wake Sleep Failures in one day! In the past two days I do not have any error and wifi is always enable. In my opinion it is an issue related with kernel and ram! With Sierra this error never happens!


I use Linux and macOS. At this moment I am studying the possibility to buy a Ryzen PC and use Linux as my main operating system. I sold my MacBook Pro late 2013 to buy the 2017 model. Well, even the 13’‘ MacBook Pro has a crazy price for the machine. My iMac late 2012 will be my last Apple Desktop. I will buy the Dell Inspiron 27 7000 as my desktop and a Dell XPS 15’‘ as my laptop. Look, I have iPhones, iPads, MacBook Pro and iMac. I spent lots of money on this machines and these type of errors are not admissible! By the way, I also will sell my iPhone SE and buy one Oneplus one 5T. Goodbye Apple.

Jan 1, 2018 4:51 AM in response to McBeave

I have a MacBook Pro (Retina, 15-inch, Mid 2014) and after upgraded to High Sierra 10.13.2, I had a similar issue. My MAC do not wake up from sleep 😟 I always need a reboot to open the device and all my works has gone 2-3 times. Apple should not blame third parties or whatever. If 10.12.X has no problems and the same configuration with 10.13.X high sierra has problems, Apple should release an immediate fix. We are not paying these high prices for shine screen and dummy siri, we need a stable operating system. (Clean installation or other re-install options cannot be applied to my system. I have critical software installed and also had a limited time. )

Jan 5, 2018 3:35 AM in response to BJF788

Not sure where I got this idea from, but thinking out of the box, it would be really nice if apple had a place where users can post commonly recurring issues. Then apple could have their real engineers review the issues and post real workarounds or fixes (not reinstall). Even better, apple collects lots of information about user behavior. Maybe they should also collect problem reports about their own o/s when it fails unexpectedly. Sort of like a system"dump". That way, they would have all of the information they need to develop a fix, or they could contact the user directly if they need more information about the reported problem. hmmmm


Maybe the folks at apple are all trapped under a heavy desk or something and haven't been able to get to the phone since the high sierra release. Perhaps they need help. 🙂

Jan 5, 2018 9:57 AM in response to JoMiya

Every time this error occurs you can either manually send the log to Apple or it can be automated. I am assuming apple has seen this error many times, at least 8-10 from me alone so now the question is has it showed up often enough to get to the top of their list or are there other more pressing problems. It is also possible that several Apple engineers have tried to fix this but either it is a difficult problem or they haven't found the right engineer to work on it, possibly both. While it is possible they are not aware of the problem or are ignoring it, I find that both of these are unlikely.

I know in this day and age we all think our problems should be solved immediately but often that is not possible.

Just so you understand me, I also wish it were fixed and it ***** that it is not, it appears that the problem has been on going for some time.

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Sleep Wake Failure: Reboots only after upgrading to High Sierra

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