TIRED: The American Sign Language (ASL) sign for "tired"
 

The sign for "tired"  starts out very similar to the sign "HAVE" and then the hands slump downward. Don't slide the hands downward, just change the orientation of the hands.
 

TIRED:

To indicate EXHAUSTED, exaggerate the sign.

Sample sentence:
SUPPOSE WALK 4-HOUR, FUTURE-[will] TIRED YOU? (Suppose you walk for four hours, would you be tired?)

Notes: 

See: SLEEP

WAKE UP