How many days of rest should I take with these weight lifting workouts?

Since school has started, I am getting only about 6 hours of sleep on weekdays and an average of 8 hours of sleep a night on weekends. With theschedule I have, there is not a way that I could make time for any more sleep. I have noticed that I have had to decrease weight and take it easier in the gym, and I have even lost some weight. I have been doing the following 3 different workouts in a cycle with no days of rest. Should I take any extra days of rest in between these workouts or should I have less intense workouts? If I should take days off how much rest should I take? Thanks

Day 1: Chest/Shoulders/Triceps
Flat bench press:4 sets of 8-10
Pec Machine: 4 sets of 8
Tricep Pulldown: 4 sets of 12
Arnold dumbbell press: 2 sets of 12, 2 sets of 10
Flyes: 3 sets of 12

Day 2: Legs/Abs
Ab Machine: 5 sets of 25
Leg Press: 5 sets of 15
Calves: 4 sets of 15

Day 3: Abs/Back/Biceps
Ab Machine: 5 sets of 25
Lower Back: 3 sets of 15
Closed grip pulldown: 4 sets of 10
Lateral pulldown: 4 sets of 12
Isolated Bicep curls: 5 sets of 12
Wrist curls: 3 sets of 24

Public Comments

1. train each muscle once a week you could do that workout monday/Wednesday/friday lift more every week if you cant eat more if you still cant take the steroids

2. It's your choice but you are losing muscle mass that is why it is harder to lift the weight. Look at your diet. You really need at least 8 hours of sleep to repair but if you don't feel tired or weak then keep on doing what you are doing in that area just make sure it is quality. You have to have at LEAST 24 hours between body part workout. The exception is the Abs. You can train on consecutive days as long as you don't hit the same part. You can actually do abs every day. BUT you need at least a day rest between the cycle. IE work out 5 days rest two. You may want to drop back on reps and sets. If you aren't increasing weight, you don't need that 12 or 15 reps at that you should be going up the next weight and dropping back the reps. Drop back to 5 or 6 and when you hit 12 or 15 increase the weight and drop the reps and/or sets

You decide how to break it up. Make sure you get at least two days and check out some of the sites on the net with articles or grab some bodybuilding books like Weider's which explains the cycle well. Pick up some quality magazines. If you can't afford them, sit in the coffee shop of the bookstore or in a chair and read.