Sheer linen curtains,I would love something like this in my bedroom

Luxurious Open Weave Natural Linen Sheer Curtains and drapes for window coverings. Buy Linen Sheers curtains at your expected price.

Sheer ripple fold curtain on a white curtain track

Made of polypropylene with rattan structure The perfect mix between attractiveness of a natural fibre look and the convenience of plastic storage

Ripplefold Wave Heading

This is a nice close up of ripple fold sheer with a ceiling track, but it would be a wall track in your case

Wave Heading Curtains from Interior Inspirations, Farnborough

The wave heading stacks back neatly, taking up less space than traditional pleated headings. When completely closed or part open, the curtains offer a smooth, continuous Wave effect.