Start with Soft Greige on the walls. It is that easy in-between of warm beige and soft gray, so it never feels cold and never feels yellow. In a bedroom that balance does a lot of work, wrapping the room in a calm, low-key warmth that feels good at the end of the day and gentle first thing in the morning. It also plays nicely with almost any bedding or wood tone you already own.
To keep things light, bring in Creamy White on the trim, doors, and ceiling. Its soft, warm tone frames the greige without the hard edge a bright white would give, so everything stays mellow. Then add a little Smoky Taupe as your accent, on a headboard wall, built-ins, or a dresser, to ground the scheme with a deeper, earthy note. Greige on the walls, creamy white on the trim, taupe for one quiet feature, and the room settles into something restful.