Stimpy, do you recommend a specific ethernet/Thunderbolt adapter?

I went to the Genius Bar and the gentleman did a series of tests to find out if there are a problem with waking up from sleep mode. He couldn't find any problem. In fact, the MBA turned on immediately when he lifted the cover so he said if it happens again, to check and see if the apple is lit on the back of the cover and then come back for another appointment.

He also restored my Safari bookmarks. He apologized there was a problem and said that transferring data from Snow Leopard to Sierra was not a problem.