wakefulness vs sleeplessness

wakefulness and sleeplessness both are nouns.

Word	Noun	Adjective	Verb	Adverb
wakefulness	Yes	No	No	No
sleeplessness	Yes	No	No	No

As nouns, wakefulness and sleeplessness are synonyms defined as:

wakefulness and sleeplessness: a temporary state in which you are unable (or unwilling) to sleep

wakefulness (noun)	sleeplessness (noun)
a periodic state during which you are conscious and aware of the world	a temporary state in which you are unable (or unwilling) to sleep
the process of paying close and continuous attention
a temporary state in which you are unable (or unwilling) to sleep