My new MBP won't stay asleep when I put it to sleep. The I hear the hard drive and fans turn off then it stays that way for a few seconds before it turns right back on. Anyone else having the same problem or has a solution?
Known problem due to the laptop waking up as soon as the magnetic latch is moved - so if your lid moves slightly then it'll wake up.
Best way to sort this is to turn off the option that causes the laptop to wake when the screen is opened - so you manually have to wake it by pressing the power button.
Load up Terminal (found in Utilities)
To turn it Off (type in terminal) sudo pmset -a lidwake 0
To turn it back to the default On ON : sudo pmset -a lidwake 1