This statement came from the NES game Metal Gear. When one of the enemy guards loose consiousness, the game states that the guard cries out "I FEEL ASLEEP!"

There are quite a few mis-translated sentences in this game. Some of them are:

"Oh no, the truck have started to move."

"First, attempt to locate missing our "Grey Fox." Then try to find the Metal Gear.

Thanks Nintendo for making Americas youth a little dumber-er.