Determine the valence intensity of the tweeter's mental state conveyed in the tweet "When I can't sleep I watch #glee @druidDUDE @HarryShumJr @HeatherMorrisTV @NayaRivera @LeaMichele @JennaUshkowitz @DiannaAgron". Provide a score from 0 to 1, where 1 signifies very positive and 0 signifies very negative sentiment.