The cabin has features to reduce traveller fatigue such as a quieter interior and higher pressurisation than previous generations of aircraft; the A380 is pressurised to the equivalent altitude of up to . It has 50% less cabin noise, 50% more cabin area and volume, larger windows, bigger overhead bins, and extra headroom versus the 747-400. Seating options range from 3-room "residence" in first class to 11-across in economy. A380 economy seats are up to wide in a 10-abreast configuration, compared with the 10-abreast configuration on the 747-400 that typically has seats wide. On other aircraft, economy seats range from in width.