I like the space as it is , very restful . I do like drapes in bedrooms for sure so maybe start there and maybe some accent pillows in a color like pale green for instance . I like mats bedide beds as opposed to a rug most of which is under the bed . I love sheepskin for those mats.. Choose the pillows you love then a color from those for the drapes and then the drape wall becomes the accent wall

I am a huge fan of grasscloth wallpaper. If you want “something” on the large wall but don’t want a lot of drama (and I do agree with Patricia….your room looks nice, calm and restful and will only look better with drapes), then grasscloth paper can add a lot, without changing your room too much. There are so many varieties, colors, textures, you can definitely find something that works with what you already have. And yes…..I would recommend either a rug under the bed, or smaller rugs on each side, at the very least.

I love the serene vibe and the view us stunning. I think a comfy chair, rug, drapes and maybe art would be beautiful.

I actually prefer no rug, unless residents object to cold floors or have issues with their feet that require soft flooring when bare. Rugs can be a trip hazard and vacuuming under the bed is painful.

It looks as if you have window shades on the single windows. I like it just the way it is and agree that adding draperies on the slider and art over the bed would make for a bit more interest.

A thought...would the headboard fit under the windows?