When you train to much you simply won't grow from it and neither will increasing your sleep to make up for overtraining work either. So how do we resolve overtraining problem, well it's quite simple just cut back on your working out by taking about two weeks off.
This is because when your not working out for two weeks your body will still grow for a period up to a week. But your probably still asking yourself how is this possible. Well think of it as this you've been working out for 8 to 12 weeks straight with maybe one or two days off in a week.
But guess what this is still not enough time for whole body to grow. Because for that first week your body is still healing itself and catching up to working out you've done, so by taking this break you reduce risk of overtraining.
Now I'm not saying to go cheat on your diet, but when your on your break you can cut back on your protein and carbohydrates because your not going to be using these extra carbohydrates for energy.