Definitely. I ONLY have mixed episodes. I've had euphoric hypomania just a handful of times. I have to take 100mg seroquel at night every single night to keep myself sleeping. It has worked pretty well for a couple years, but when I miss a dose, sometimes my sleeping is just like you described. It's not always like that because my illness isn't predictable at all. The mixes of symptoms are constantly changing. So I don't have the experience you described all the time, but I have it sometimes.