Wine, claret, and crimson on one wall behind the bed. Genuinely doable. Full-room bright red in a bedroom is a mistake most people only make once. The colour keeps the brain active in a way that makes winding down harder than it needs to be.
White for contrast. Gold and brass for warmth and richness. Dark wood for grounding. Grey for a more contemporary pairing. Avoid strong cool blues or greens alongside red. The clash tends to feel accidental rather than considered.