Mac has problems sleeping at night

[pauldacheez]

Hello again, all!

My iMac seems to wake up often in the middle of the night and in the day when I'm at school. I was wondering if there's an app/pill that can attempt to do the opposite of Caffeine: keep my Mac asleep at night. Does anyone know of such a thing? I doubt it exists, but then again sometimes I doubt I exist.

 

[Cboss]

I know that there's an application that can put your Mac to sleep, but I can't think of the name right now. I'm sure others will know.

But here's a link to Apple's site with info about sleep issues.

http://support.apple.com/kb/HT1776

 

[Gregg2]

I know that there's an application that can put your Mac to sleep, but I can't think of the name right now.

Macbien?

Is there perhaps a process running in the background that prevents sleep?

 

[H00513R]

I've had this problem the last week also. After reading the Apple site, I think it's my bluetooth because my mouse is low on batteries. Thanks for the help!

 

[Hellhammer]

Try repairing permissions with Disk Utility

 

[Mork]

Hello again, all!

My iMac seems to wake up often in the middle of the night and in the day when I'm at school. I was wondering if there's an app/pill that can attempt to do the opposite of Caffeine: keep my Mac asleep at night. Does anyone know of such a thing? I doubt it exists, but then again sometimes I doubt I exist.

We had this problem too. In our case, the culprit turned out to be a USB cable connect to an (off!) HP LaserJet printer. Unplugged USB and right to sleep the iMac went.

HTH

 

[bmcgonag]

Ambien.

 

[pauldacheez]

All good suggestions! The problem, I should clarify, isn't that it can't sleep, it's that sometimes it wakes up without warning. I don't mean the wake-up-with-screen-off-and-go-back-to-sleep kind caused by Bonjour, but the kind where I put it to sleep, go to bed, and wake up with it awake. There's nothing I can see waking it up. This isn't much of a problem to me, really, but hey, yesterday was Earth Day, gotta save some watts

 

[Gregg2]

Macbien?

Ambien.

I don't mean the wake-up-with-screen-off-and-go-back-to-sleep kind caused by Bonjour, but the kind where I put it to sleep, go to bed, and wake up with it awake. There's nothing I can see waking it up.

Of course you can't see what's waking it up, you're asleep.
There's gotta be something that runs intermittently causing the "insomnia".