Geodon can make you sleepy, but then, so can Seroquel. I always have taken my Geodon doses split in the morning and the evening. At one point I was taking 60mg at night and 60mg in the morning, but now I take 80mg at night and 20mg in the morning so it doesn't affect my energy level. I would not take 160mg all at once, but that's just my body. I probably would sleep for 14 hours if I did that. Hope this helps.