I noticed that my macbook air mid 2011 wakes up slower with Sierra than Capitan. Before, I just had to press esc once to wake the laptop up, and it's pretty instant. Now, I find that I have to press it a few times, I'm not sure if the first key press didn't register, or that it takes longer to wake up, so it seems like it didn't register. So usually, after pressing esc a few times, sometimes it wakes up and goes back to sleep again. Anyone else experience something similar to this?