Well, it's not as bad as quoting the old "make sure you repair permissions" voodoo, but those commands aren't going to fix any wake-from-sleep issues.
1. sudo chown root:admin /
Sets the owner of all files/directories in the top-level directory of your hard drive to the root user, and their group to admin. In fact, some of these files are usually owned by root:wheel and root:staff.
2. sudo kextcache -system-prelinked-kernel
This updates the system's kernel with all the drivers (kexts) in the extensions folder. Might speed up your booting, but when you resume from sleep, the kernel's *already* loaded and running.
3. sudo kextcache -system-caches
This rebuilds some caches for various drivers in your system
Again, when you're waking from sleep this stuff is already loaded in memory.