I am trying to lose weight and gain some muscle, to which I have started my workouts for the past 2 weeks. In summary, it's something like this:

Monday : Weights (chest & triceps)
Tuesday : Cardio
Wednesday : Weights (back & biceps)
Thursday : Cardio
Friday : Weights (legs & shoulders)

Saturday and Sunday are rest days. I workout at home with dumbbells and a barbell. So far my workouts really tire me out, especially since I workout after work. However, ever since I started working out, I have had trouble sleeping. For the past 2 weeks, I always wake up at around 2-3am (I usually sleep around 10.30pm) and continue on with a fitful sleep till my alarm goes off at 5am. Has anyone faced something like this?