go to sleep

VERB
11 LETTERS · STARTS WITH G

go to sleep is a valid 11-letter word worth 12 points in Scrabble and 15 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
G2O1T1O1S1L1E1E1P3
2 + 1 + 0 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 3 =12 PTS
DOUBLE WORD → 24TRIPLE WORD → 36
MEANING

What does go to sleep mean?