Why will MacBook not go to sleep without Bluetooth?

What does Bluetooth have to do with the computer going to sleep?
My wife's MacBook will periodically lose Bluetooth. Normally, I wouldn't notice or care since we do not use Bluetooth devices. However, her MacBook will not go to sleep when Bluetooth disappears. It will work fine for several weeks after I reboot it a couple of times, and Bluetooth returns.
We both have the same early 2006 MacBook, and my Bluetooth never disappears.
Does she have another problem that is coincidental with the Bluetooth issue?
Anyone else notice that their computer can not go to sleep when they are having a Bluetooth problem?
Have a nice day.
Boyd

Hello Boyd:
What does Bluetooth have to do with the computer going to sleep?
I do not know.
Does she have another problem that is coincidental with the Bluetooth issue?
Possibly, but hard to diagnose.
Try trashing the preference file (com.apple.bluetooth.plist) and restarting.
Barry

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