aklvdb, we painted our bedroom Valspar Iron Frost which is even darker than Night Train (as it looks on my monitor). When it was first done, it seemed very dark, but the room is very sunny/bright, and it's just such a beautiful color that we love it --- on all 4 walls. (That said, of course, since you already have curtains on order, wait before making a decision!)

Also check out BM Granada Villa. Its a beautiful blue teal. We have it up in our entry and an accent wall on our stair landing. Paired with with BM Sea Spray which is a goldish beige. I am starting to think about our Master BR also. It's still builders paint. Will be very interested in the suggestions here. Would love to see the purple blue that Tarnator is talking about. Our designer helps us with colors usually which has really worked in keeping us from wasting time and money.

I didn't even see the smaller pictures load before thinking Hah -- the colors I was thinking -- and moving on (they were tearing out my tile floors today -- sneaking any internet time during the day was a treat). Looking closer, the walls appear gray on my screen too, and that works too. Looks like one of what I initially saw as two shades of blue may be one grey and one blue. If you don't have the bedding and that's what you want, get it and then it will be much easier to pick a color from it or inspired by it to work with everything, especially since it has a touch of yellow. Has some beige too, but they are compliments to the cooler colors.

With all that dark furniture I wonder if dark flooring would be a good idea, although I don't know how well dark furniture and a light floor would go together. You could always cover a large portion of the floor with a beautiful Oriental rug with colors that you love and then pull your bedding, pillow and drape colors from that. You could still have a white duvet and focus the color on the pillows. You could choose a soft, pale green for the walls and take that as your inspiration for rugs, drapes, etc. I do think some of these items should have patterns with added colors such as yellow, pale blue, green and a touch of pink or terracotta to add warmth. I would look for pictures on houzz and elsewhere for traditional bedrooms and that should give you wealth of ideas.