Task: Analyze the tweet's emotional connotations and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best portray the tweeter's mental state.
Tweet: It's easy to #fall #asleep in class, but hard to in bed. #True #sober #whileyouweresleeping #insomnia #TeamFollowBack #RockTheReTweet
This tweet contains emotions: 
anger, sadness