I'm a poor sleeper and often have to get up in the middle of the night. My Venu 3 doesn't detect this at all. According to the watch I'm asleep while I'm literally walking around my house for 20 minutes. Got the watch specifically to help me manage this so I know how much sleep I'm missing, but it totally fails. Cheapo 40 dollar watches don't even have this problem. I don't understand how this is possible, what algorithm ever could decide that a person that just walked around for 500 steps is asleep? Who sleeps like that? Is this something I can fix with settings or should I just return the watch and never look at this brand again?