ok, lets say you get home from work. You're tired and it's getting late. You still have quite a few more calories you need to get in but you have to wake up on time in the morning. You need at least two more meals. You also haven't taken nearly enough protein for today.
What do you think would be best to do? Eat or Sleep?
If you choose to eat, then you will get that needed protein and calories for bulking but will probably only get about 5 hours of sleep.
If you sleep, then you miss out on your eating goals for the day.