| I agree, sounds like your Lantus needs to be adjusted. I used to experience HUGE drops like that overnight too. It was very scary. These days I cut back my Lantus dose for every 40 mg/dl that I drop. This guideline came from my endo - I don't think it is personalized, I *think* this could be applied to anybody, but don't take my word for it. Just keep in mind that if you're dropping 150-200 points overnight, you may need to cut back quite a few units.
As an example, when I experienced 200-300 point drops, my Lantus dose eventually ended up at ~50% of what I was originally taking.
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T1 16 years, on Lantus, Apidra and Regular.
"Nothing shocks me. I'm a scientist." | 
