including risk of suicide, may occur. intermezzo, like most sleep medicines, has some risk of dependency. common side effects are headache, nausea, and fatigue. so if you suffer from middle-of-the-night insomnia, ask your doctor about intermezzo and return to sleep again. ♪ the delightful discovery. the sweet realization that you have a moment all to yourself. well, almost. splenda® no calorie sweetener. splenda® makes the moment yours™.