I've noticed lately that when it's colder at night I get hypos more. I'm not changing anything like food, etc... and the only difference I've noticed really is the temperature. Is it possible that your body becomes more sensitive to insulin when temp changes? It appears that way with me. I'm quite annoyed with it right now as I've had trouble sleeping and finally cool nights, etc... and I want to sleep and I'm being woken up with hypos. I'm waking up in the morning sometimes feeling like I've had a hypo too (obviously I didn't wake up during it)... it's colder in the mornings too. I haven't changed any insulin dosages either. Usually my 17 units of Lantus works fine. Any thoughts? Does this happen to you?