A — 1: καθεύδω
(Strong's #2518 — Verb — katheudo — kath-yoo'-do )

"to go to sleep," is chiefly used of natural "sleep," and is found most frequently in the Gospels, especially Matthew and Luke. With reference to death it is found in the Lord's remark concerning Jairus' daughter, Matthew 9:24; Mark 5:39; Luke 8:52 . In the epistles of Paul it is used as follows: (a) of natural "sleep," e.g., 1—Thessalonians 5:7; (b) of carnal indifference to spiritual things on the part of believers, Ephesians 5:14; 1—Thessalonians 5:6,10 (as in Mark 13:36 ), a condition of insensibility to Divine things involving conformity to the world (cp. hupnos below).

A — 2: κοιμάω
(Strong's #2837 — Verb — koimaomai — koy-mah'-o )

is used of natural "sleep," Matthew 28:13; Luke 22:45; John 11:12; Acts 12:6; of the death of the body, but only of such as are Christ's; yet never of Christ Himself, though He is "the firstfruits of them that have fallen asleep," 1—Corinthians 15:20; of saints who departed before Christ came, Matthew 27:52; Acts 13:36; of Lazarus, while Christ was yet upon the earth, John 11:11; of believers since the Ascension, 1—Thessalonians 4:13-15; Acts 7:60; 1—Corinthians 7:39; 11:30; 15:6,18,51; 2—Peter 3:4 .

Isaiah 14:8Daniel 12:21—Thessalonians 5:6Genesis 3:19Ecclesiastes 12:72—Corinthians 5:1Philippians 1:232—Corinthians 5:6-9
A — 3: ἐξυπνίζω
(Strong's #1852 — Verb — exupnizo — ex-oop-nid'-zo )

"to awake" (ek, "out," hupnos, "sleep"), "to awake out of sleep," is used in John 11:11 . In the Sept., Judges 16:14,20; 1—Kings 3:15; Job 14:12 .

A — 4: ἀφυπνόω
(Strong's #879 — Verb — aphupnoo — af-oop-no'-o )

"to fall asleep" (apo, "away"), is used of natural "sleep," Luke 8:23 , of the Lord's falling "asleep" in the boat on the lake of Galilee.

: (Strong's # — — — )

Acts 16:27 , signifies "out of sleep."

C — 1: ὑπομένω
(Strong's #5278 — Verb — hupnos — hoop-om-en'-o )

is never used of death. In five places in the NT it is used of physical "sleep;" in Romans 13:11 , metaphorically, of a slumbering state of soul, i.e., of spiritual conformity to the world, out of which believers are warned to awake.