I have blackout/insulating curtains in almost every window in my S&B and yes they are worth it. I bought mine from Penneys and have considered buying more and cutting down for windows in TT. I think quilted fabric will be even more insulated than the blackout, but let DW put whichever she likes best. The window coverings in most RV's are UGLY. Let her put her own personal stamp on it. I am most likely going to continue using the reflectix panels in my TT windows and go to the insulated curtains when I purchase my future fulltime rig in a few years.