Does Power Nap sync Safari bookmarks and browsing history? By what I could read in article
How Power Nap works on your Mac
https://support.apple.com/en-gb/ht204032

Power nap seems not to sync Safari bookmarks nor browsing history, at least it's not mentioned in the list of dos.  Anyone can confirm if this is the case?
I did a little test: bookmarks where synced, Safari history was not.
The test: I slept my Mac mini.  visited a couple websites in my iPhone + added two bookmarks on two other websites.  In the morning, I disconnected the Mac from the network, awoke it and saw that:  Bookmarks had been synced.  Safari history wasn't.