| I used to have a big problem with dawn phenomenon when I was on NPH. Either that, or I would have the Somogyi effect - a low in the middle of the night (without waking) and a rebound high in the morning. Sometimes I wasn't sure which process was taking place!
With lantus my bsl usually stays the same overnight or drops slightly (or a LOT if I have been very active that day). The rise doesn't come until after I wake up, so I bolus almost as soon as I get up, as Mark mentioned. For me it only takes one unit of humalog to keep my bsl steady if I don't eat breakfast. I take lantus AM and PM. When I took lantus at bedtime only, I would go low during the night and be high by 6:00 PM.
Hope this information helps someone else. | 
