I came up out of N3 sleep to Wide The Heck Awake without passing through any intervening stages, like this:
|"Captain to the bridge. Ship's cat's about to blow chunks."|
This did nothing for the overall quality of my night's sleep.
Speaking of subs, it was on this day in 1944 that the U.S. Navy captured the U-505; the first time since the War of 1812 that the USN had captured an enemy vessel at sea. The sub is currently in the Museum of Science and Industry in Mordor-on-Lake-Michigan if you'd like to tour it.