To find the false statement, each option is judged against standard diabetes management. The assertion that a person with type 2 diabetes will never need insulin does not hold up, because type 2 disease is progressive: as the pancreatic beta cells decline over the years, and in situations such as serious infection, surgery, pregnancy, or failure of oral drugs, insulin becomes necessary. So this is the incorrect statement and the answer. The remaining options are all accurate. Sliding scale dosing, where each dose tracks the current glucose reading, is a recognised inpatient practice. Reducing the night-time insulin dose is a deliberate strategy to keep blood sugar from dropping too low while the patient sleeps. And regular insulin is an accepted treatment in gestational diabetes precisely because insulin molecules do not pass the placenta to the fetus. The statement that fails the truth test is therefore the one about type 2 patients never needing insulin.\[\boxed{\text{Type 2 diabetes patients never require insulin}}\]