Double rods: You will need to purchase two size rods that are the same in finish: a larger one for the front rod and a smaller one for the back sheer rod. Install the larger rod first and then just on the inside of that bracket, install the smaller rod’s bracket.
Window treatment--layered, but unfussy and modern with a nod to tradition. Pretty sheer white handmade (?) textile on clip rings flanked by charcoal linen rod pocket curtains on either end of the curtain rod. Smart. (Not fond of the rug or odd color palette in this room, but the windows, Yes!)
Hang two sets of curtains on one rod using this cool trick. It's simple, just hang your blackout curtains on a bungee cord behind your decorative curtains - no one will see the cord and assembly is a breeze!