LSJ
(λεύχεται cod.)· κοιμᾶται, cf. Theognost. Can. 139; pf. part. λελοχυῖα (= λεχὼ γενομένη) Hsch. ; other tenses in Ep. ; fut. λέξομαι ; aor. ἐλεξάμην ; also 3 sg. aor. ἔλεκτο, λέκτο ; imper. λέξο, λέξεο (v. infr.) : — lie down, esp. to sleep, λέξεται ὕπνῳ will lie asleep, Il. 4.131, cf. Od. 7.319; λέξομαι εἰς εὐνήν 17.102; aor., πὰρ δ’ Ἑλένη ἐλέξατο 4.305; τῷ ἔνι λεξάσθην Il. 14.350; λεξάσθων παρὰ τάφρον let them bivouac, 9.67, cf. 8.519; ἔλεκτο Od. 19.50, Hes. Sc. 46; λέκτο Od. 4.453, al. ; imper. λέξο Il. 24.650, Od. 10.320; λέξεο Il. 9.617, Od. 19.598. causal in Act., lay asleep, lull to sleep, λέξον με Il. 24.635; ἔλεξα Διὸς νόον 14.252. (Goth. ligan, Engl. lie, etc.)
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)