Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: I think 'Sleep' is my favorite from How did we get so dark?, maybe because I'm insomniac
This tweet contains emotions: 
joy, love, optimism, sadness