Hormone that regulates sleep
9 letters — from Inventions, group 57, puzzle 4.
“Hormone that regulates sleep”
| Clue | Answer | Letters | Copy |
|---|---|---|---|
| Hormone that regulates sleep | MELATONIN | 9 |
Where This Clue Appears
The CodyCross clue “Hormone that regulates sleep” is answered by MELATONIN, a 9-letter entry in the Inventions world, group 57, puzzle 4. The full puzzle page lists every other clue in that same grid, which is usually what you want if more than one row is blocking you.
Check the letter count before you commit. CodyCross fixes the length of every row before you type, and the game reuses the same clue wording in different worlds with entirely different solutions — so a clue that looks identical to one you have already solved may want a different word here. If your grid shows a different number of squares than the 9 above, you are almost certainly on the same clue from another world.
The answer MELATONIN is also used for 1 other clue in the game, listed below. You can browse the whole game from the world index — 108 worlds, 2,144 groups and 10,716 puzzles — or check the separate daily crossword archive.