I am over halfway through week three of Insanity, I started April 1. It has been challenging to say the least but I've also started to see results. I'm not a morning person either but last week I got up each morning and did my workouts before work and it felt wonderful to get them out of the way first thing and not have to think about them the rest of the day. This week for some reason I haven't been able to get up and have been doing them in the evenings. I find I tend to dread them when done later in the day. Also, when doing them in the morning you are more likely to eat better for the remainder of the day.