It's been awhile since I started this post, but I thought you may want to see my solution. I spent endless hours trying to find a fix, to no avail. The computer wakes from sleep Monday through Friday at 6am, no matter what. But I did find a workaround, almost elegant in simplicity, suggested above by kword 88. Wish I hadn't been so focused on finding a fix! All that needs to be done is to reset the clock, then reset it to the proper time when I get up. Thanks all for all your suggestions, and apologies to kword 88 for not trying his solution earlier.