From “Vietnam man handles three decades without sleep“:
Sixty-four-year-old Thai Ngoc, known as Hai Ngoc, said he could not sleep at night after getting a fever in 1973, and has counted infinite numbers of sheep during more than 11,700 consecutive sleepless nights.
“I don’t know whether the insomnia has impacted my health or not. But I’m still healthy and can farm normally like others,” Ngoc said. …
Ngoc often does extra farm work or guards his farm at night to prevent theft, saying he used three months of sleepless nights to dig two large ponds to raise fish.
Neighbor Vu said Ngoc volunteered to help beat a drum during the night and guard the house for the relatives of the dead during funeral ceremonies so that they could take a nap.