Gray + yellow bedroom: Benjamin Moore 'Shadow Gray' in West Elm, a photo by xJavierx on Flickr.
Love the gray and yellow palette; not a fan of the bed frame or the lamp. To lighten things up and make the room more interesting, I'd bring in a white or pale gray bed and a different lamp(s), such as these green midcentury ones, this fabulous faux bamboo number or these simple Hollywood Regency ginger jars.
Walls are painted Benjamin Moore's Shadow Gray. Stripe duvet cover, shams and glass jug table lamp, West Elm. Photo from westelm.com.