|Noah Webster's Dictionary|
1. (a.) Having no sleep; wakeful.
2. (a.) Having no rest; perpetually agitated.
Sleepless (2 Occurrences)
2 Corinthians 6:5 by floggings, by imprisonments; by facing riots, by toil, by sleepless watching, by hunger and thirst; (WEY NAS NIV)
2 Corinthians 11:27 with labour and toil, with many a sleepless night, in hunger and thirst, in frequent fastings, in cold, and with insufficient clothing. (WEY NAS RSV)