Hehe, the Freefall Comic in the tab next to this one is about waking up after sleeping for 18 hours due to being sick. Synchronicity!

Edit: The scene you're talking about also kind of reminds me of a bit in Schlock Mercenary when they're trying to figure out where Schlock's Homeworld is, and he can basically just give descriptions of the planetary surface and the force cage he was in on the pirate ship that abducted him.