"the sleeper, who endeavours to obtain sleep through the whole of life"

"my discourse does not bring with it an exhortation to every description of men. For it is not directed to those who are occupied in sordid mechanical arts, nor to those who are engaged in athletic exercises; neither to soldiers, nor sailors, nor rhetoricians, nor to those who lead an active life. But I write to the man who considers what he is, whence he came, and whither he ought to tend, and who, in what pertains to nutriment, and other necessary concerns, is different from those who propose to themselves other kinds of life; for to none but such as these do I direct my discourse. For, neither in this common life can there be one and the same exhortation to the sleeper, who endeavours to obtain sleep through the whole of life, and who, for this purpose, procures from all places things of a soporiferous nature, as there is to him who is anxious to repel sleep, and to dispose everything about him to a vigilant condition. But to the former it is necessary to recommend intoxication, surfeiting, and satiety, and to exhort him to choose a dark house, and

A bed, luxuriant, broad, and soft,---

as the poets say; and that he should procure for himself all such things as are of a soporiferous nature, and which are effective of sluggishness and oblivion, whether they are odours, or ointments, or are liquid or solid medicines. And to the latter it is requisite to advise the use of a drink sober and without wine, food of an attenuated nature, and almost approaching to fasting; a house lucid, and participating of a subtle air and wind, and to urge him to be strenuously excited by solicitude and thought, and to prepare for himself a small and hard bed. But, whether we are naturally adapted to this, I mean to a vigilant life, so as to grant as little as possible to sleep, since we do not dwell among those who are perpetually vigilant, or whether we are designed to be in a soporiferous state of existence, is the business of another discussion, and is a subject which requires very extended demonstrations."

     Porphyry, On abstinence from animal food 1.27, trans. Taylor.  I was put on to this by Bernard Collette-Dučić, "Sommeil, éveil et attention chez Plotin," χώρα:  revue d'études anciennes et médiévales 9/10 (2011/2012):  260 (259-281).