I have all auto sync categories (i.e. folders, photos, and videos) off in settings, but SugarSync Android app periodically wakes the tablet up for syncing, despite there is nothing to sync. The interval of these wake ups is the one specified in the auto sync settings (which are disabled, i.e. grayed out).
This results in unnecessary battery drain (my setting for the period was 1 hour, and it “ate” about 10% of battery overnight).
I have switched the syncing interval to 24 hours, so I will see in the evening if it alleviated the issue as a temporary workaround. The real fix must be done in the SugarSync app – to stop waking up when auto sync is off. Reported this to SugarSync, let’s see what will happen.