Assertion: insomnia's sleep | /r/HasProperty | required for life
Facets:
Source sentences:
text: This is a very curious thing about biology, that sleep is actually required for life, and in fact required for all life — virtually every living thing sleeps, if it has any kind of a brain of any kind at all.7
text: This is a very curious thing about biology, that sleep is actually required for life, and in fact required for all life — virtually every living thing sleeps, if it has any kind of a brain of any kind at all.7