Dextromethorphan seems to potentiate benzodiazapines, so you don't have to keep increasing the benzo dosage. The expensive route is to buy DM cough syrup and take equivalent of about 30mg of DM (aka DXM)along with the normal sleep dose of benzo -- I like 2mg Clonazepam (Rivotril/Klonopin) but that may be too long acting for you. Look for my posts on LTK research threads or PM me for the less expensive DXM approach -- you have to be much more careful with cheap approach.