A town mentioned briefly in Thief of Time. Long Nap is located in the Ramtops, on the way from Enlightenment country to Ankh-Morpork. Lu-Tze and Lobsang Ludd sliced their way through this town on their way to Ankh-Morpork to stop the Glass Clock.
It is close enough to Oi Dong for the locals to have a sense of Rule One. In fact, monks passing through on urgent missions might take provisions (while slicing time) and leave a coin behind- indicating that the History Monks owe their owner a few minutes of time.