For me personally, whenever I take oxy, sometimes I get up and clean and do everything that I need to get done. Other times I nod out and lay in bed for the entire ride. It usually depends on what I'm doing when it starts kicking in. If I'm up and doing things, I get the speedy high, if I'm laying in bed when I start feeling the magic, then I should plan on being there a couple hours. Pay attention to what activities you are doing when you take it and see if you have a similar correlation. =)