I've been questioning for a long time now in my head just how "catabolic" sleep actually is.
In fact, i'm quite doubting it is.
Albeit, you got a for several hours without eating, but saying you eat a short while before bed, and especially in a situation when you're bulking, the stomach will sill be doing it's job and the blood aminos will never really dip. Couple that with a slowed metabolism during nocturnal hours and hGH pulsing during REM, which promotes glycogen synthesis and fat burning, i'm doubting there will be much catabolism at all.
There may be some cortisol floating around the blood stream in the latter stages of sleep, but not enough to really cause significant catabolism. And myself and many others in my gym or over the net have done nicely without a morning shake. This is just my opinion based on research i've read, but i'd say just get on with normal eating. I know LAM practises something like that, and if you wanna give it a try then go for it.
If you're gonna do it while cutting then make sure you consider the calories in your daily totals.
