Dorm rooms, as a rule, tend to be small, which is why a space saver like a loft bed is so practical in the college environment. When a desk is already incorporated in the space under the bed, it becomes the perfect solution for students, because the desk takes up no extra floor space whasoever. Just make sure the bed is high enough to have ample head room when sitting down. This may not be true of the lower loft beds designed for young ones.
College Loft Bed Frame:
College Loft Bed Frame pictured: Loft Bed Full Size Work Station by Coaster Home Furnishings