Siri never sleeps

I used to ask Siri everyday to “go to sleep” and she would turn the computer to sleep mode with no problem. Now she answers me “Siri never sleeps” I need to specifically ask “Can you put the computer to sleep?” And without even an answer the computer just turns black to sleep mode. Which is ok but some feedback that she got it or something would be nice. “Got it! I’m setting the computer to sleep mode” or something like that would be nice.