zlacker

>>speckx+(OP)
I've worked around this problem on each mac laptop I've owned over the years by configuring "hibernate on lid close."

When I open the lid of the mac it takes maybe 20-30 seconds to resume. I consider this a small price to pay in exchange for reliable sleep and less battery drain with the lid closed.

If you want to try this, run in the terminal:

sudo pmset -a hibernatemode 25

If you don't like it, you can restore defaults with:

sudo pmset -a hibernatemode 3

>>teejmy+Fh
I just got my MacBook Air of the shelf to run this command. But I had to hook it up to a power outlet, because the battery was drained