{TCD 1299 page and line 32b55} Let it be asked here whether sleep injures more in the beginning of the paroxysm than in the other periods; it seems it does more in the beginning, for Galenus says that every injury done in the beginning of the paroxysm {TCD 1302 fol col and line fol 6a2line2} continues throughout the three other periods, so sleep does more harm in the beginning of the paroxysm than in every other period of it. This is opposed according to Galenus in the second section of Aphorisms saying that if sleep injures in the decrease it is a sign of death, and it is not so in the beginning, so sleep does more harm in the decrease of the paroxysm than in its beginning. We answer that and say that there are three classes of sleep, i.e. sleep which is altogether natural, unnatural sleep, and sleep which is neither natural nor unnatural. And sleep which is altogether natural is as Avicenna says: ‘Maximus ...’, i.e. great sleep which is called maximus, and deep sleep which is called profundus, and extensive deep which is called multus. And unnatural sleep is as subeth6 and the like. And sleep neither natural nor unnatural is as the sleep one has after walking or great labour or work, for Galenus says this sleep is neither natural nor unnatural. And Galenus says sleep is understood in two ways, i.e. directly and indirectly, and Avicenna gives this conclusion, that direct sleep is altogether natural and beneficial, and accidental sleep is injurious and unprofitable. And Galenus says the sleep taken in the decrease of the illness injures more than in every other period of the paroxysm.