Cover for IKEA KARLSTAD add-on chaise longue - Event Turquoise Blue. Blue is said to bring down blood pressure and slow respiration and heart rate. That is why it is considered calming, relaxing and serene, and it is often recommended for bedrooms and bathrooms. Be careful, however: a pastel blue that looks pretty on the paint chip can come across as unpleasantly chilly when it is on the walls and furnishings, especially in a room that receives little natural light. If you opt for a light…