After having met with the Wind God, she had gifted Odysseus a bag of wind to sail across the ocean to get back home safe and sound. But all he has to do is to not open the bag.

And so, after his men thought there was treasure inside the bag, he has been keeping the bag safe, not trusting ANYONE. As he held the bag close.. he hadn't slept for 9 days straight.

"Gotta.. stay awake.. and keep this bag closed.."

He spoke to himself.. as it was getting heavier to stay awake.