Now that you see where your time is going, you have a chance to consider how you can redistribute time for a better balance. You seem to be taking your studies seriously. Most professors assume that you need about 2 hours of preparation for each hour in class. By that standard, a 40 hour week would be very reasonable. You have established a good balance between academic and personal time.
Sleep deprivation is a major problem.
You may be dosing off in class or finding it hard to concentrate if you get less than 7 or 8 hours of sleep at night. The Academic Advancement Center Understanding how you use your time now can help you decide if you need to make changes. I have a good balance between academics, recreation, and other obligations. I treat my academic commitments like a full time job of about 40 hours per week. The time I spend on academics equals or exceeds the time I allow for recreation.