It's all about chilling out at The Westin Arlington Gateway where in-room spa treatments are a decadent treat. Your room becomes a retreat where all amenities needed for a revitalizing spa treatment await. Healthy treats, bottled water, CDs of spa music, aromatherapy oils, and room sprays will customize your spa treatment. You can also soothe your spirit with a refreshing dip in the indoor pool or recharge with a run in the fitness center using the Running Map by Runner's World. If you know your schedule, you could save up to 20 percent when you reserve 14 days in advance.