#19 -- "He continued to live a full, sleepless life." for 11 hours and 23 minutes, since he doesn't hold the record for "longest period without sleep".
The record for the longest period without sleep is 11 days and 24 minutes. The record holder, Randy Gardner, exhibited concentration problems, short-term memory loss, paranoia and hallucinations.
#19 -- "He continued to live a full, sleepless life." for 11 hours and 23 minutes, since he doesn't hold the record for "longest period without sleep".