I bought this stuff about two weeks ago, in the strawberry flavor. I thought having a nigttime protein would be awesome, but in all it hasnt been that great at all. It has Casein in it, which is a really slow acting protein, and its actually sopposed to supply your muscles all night long while you sleep.......problem is everynight after taking this I dont sleep. on off nights i never have a problem sleeping. but nights i use this product it is so hard for me to sleep, and once i do sleep i will wake up about 4 times to go to the bathroom. i never have to go to the bathroom 4 times during one night, even if i do drink a ton of water or milk before I go to bed. And this makes me so mad because i've heard the one of the main things you need to build muscle is SLEEP. so i just want to know if im the only one with this problem with this protien or if other people are having difficulty sleeping with it too.