Giorgio Vasari, Lives of the Most Eminent Painters…
“ And what can I say of the Night, a statue not rare only, but unique? Who is there who has ever seen in that art in any age, ancient or modern, statues of such a kind? For in her may be seen not only the stillness of one sleeping, but the grief and melancholy of one who has lost a great and honoured possession; and we must believe that this is that night of darkness that obscures all those who thought for some time, I will not say to surpass, but to equal Michelagnolo in sculpture and design. In that statue is infused all the somnolence that is seen in sleeping forms ”
