I've done it but usually you need sleep even 2 hrs is good enough but you can only do it for a bit, sooner or later it catches up to you and you need the sleep.
Coffee is shit man,It stunts your growth,and it gives you bad indigestion.But grinds is like holy shit!You didnt make them into the liquid,that must be doing bad things to your body.
Damn 5'10.I'm like 6'4.And damn I would have more ladies if I wasn't skinny as hell! Want to see? here...... _________________________________________________________ and thats me!LOL