| I think it just depends on you, what happens to your BG at night... I personally dont worry about being in the 80's, I sit around 80-90's all day.. Some nights I'll wake up with a low being in the 80's before bed, some nights I dont. But I prefer being in the mid 80's at bed time because my morning numbers are much better. But I know that if I go low, 95% of the time it's between 2 am and 4 am, which are the times I typically wake up to test anyways, so I normally catch them.. If your worried about it, eat a small snack before bed to bump you up to 100 or so... But the best way to tell is waking up several times at night and testing to see whats going on.. | 
