778. About the sleep even of spirits
It has already been told, I believe, that there are various changes of state with spirits, many more than with people on earth [319, 651-652, 696], so that there are perpetually changing states which they undergo. Therefore they also have a state of sleeping and waking and all the states in between.
778. CONCERNING THE SLEEP EVEN OF SPIRITS
It has, I think, been stated before [n. 6 696, that with spirits there are diverse changes of state, and many more than with men, so that the changes of state which they undergo are perpetual. Therefore they have states of sleep and of wakefulness, and thus all the intermediate states.
778. De somno etiam spirituum
Quod apud spiritus diversae sint status mutationes, et multo plures quam apud homines, prius ut reor dictum [319, 651-652, 696], sic ut sint perpetuae status mutationes quas subeunt; quare etiam iis est status somni et vigiliae sic [sunt] status intermedii omnes.