Cab A/C hose insulation

[Tbonz]

Has anyone tried to insulate the hoses that lead to the ducts on the cab air? On the DW side she is sitting with a blanket and I am toasty. By the time the air gets to me it has warmed considerably. Looks like it may be a chore to insulate them but it could be worth the effort..We do well until the outside temp gets around 90.I think I may have posted about this before but couldn't find it..Sorry for redundancy. Thanks ,Terry.