Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent the tweeter's mental state.
Tweet: Why is it when you nap during the day you are so comfortable but sleeping at night you'll never be as comfortable #nightmare
This tweet contains emotions: 
disgust, sadness