Suggestion for window: a blackout roller shade in a modern print. You can get a simple box style Header (?) to keep the look clean. The shade store has a nice selection of modern themes- though there are many companies to choose from. A sheepskin rug for the floor? Rather than wood tables, there are modern ones available in metal and even plastic (Componobilli is the one I'm thinking of in plastic)

Agree with above with minimalistic shades whether roller or other in a color you want to add to the space or a minimalistic color:

If possible due to the smaller scale I believe you need I would have wall mounted lights on each side of the bed vs. lamps on the tables.

Other wise smaller scale left and right wall mounted. Not hard if you have outlets on each side!

https://www.wayfair.com/lighting/pdp/yorba-1-light-wall-sconce-cstd2990.html

Rather than the sheepskin I would get a larger rug that will partially fit under the bed to give warmth to what should be a cozy and welcoming space. Your bedside tables seem much too low, and they don't have to match each other. I would put plain cream curtain panels behind the bed with a fairly high rod that is long enough so that the window is only slightly covering the window at the sides. It's a much softer look without being traditional or fussy.

I guess shades are more streamlined.

Personally, I'd go with a wall of curtains or those Ikea fabric panels on tracks. Either way, probably ceiling mounted tracks.

http://www.ikea.com/us/en/catalog/categories/departments/living_room/10702/