John Lightfoot on Matthew 25:5

[They all slumbered and slept.] "If some sleep" [while they celebrate the paschal supper], "let them eat; if all, let them not eat. R. Josi saith, Do they slumber? let them eat. Do they sleep? let them not eat." The Gemarists inquire, "Whence a man is to be reputed as a slumberer? R. Ishi saith, He sleeps and doth not sleep, he wakes and is not awake. If you call him, he answers; but he cannot answer to the purpose." The Gloss, "If you speak to him, he will answer yes, or no; but if you ask any thing that hath need of thinking; as, for instance, where such a vessel is laid up? he cannot answer you."