Also Known As, Bedtime, Snoring, Boring, Sleep, Zzz.
Unicode Name: Sleeping Symbol.
A group of letters Z, varying in size from the largest to the smallest.
Snoring: breathe during sleep with a loud hoarse noise.
It symbolizes the sound that occurs during sleep, called snore.
* Approved as part of Unicode 6.0 in 2010.
* Added to Emoji 1.0 in 2015.