For the ultimate peace and quiet, consider some alone time. The Sleepbox, now on display at Moscow's Sheremetyevo Airport, is a boat-cabin-like space featuring a twin-size bed, nightstand, fold-down desk, safety deposit box and charging station. Meanwhile, Minute Suites, micro hotel rooms each equipped with a sofa, television, desk, phone, office chair and WiFi, have opened in airports in Atlanta and Philadelphia. At $30 per hour and $7.50 for each 15-minute block thereafter, the hideaways cost less than day passes to many airport lounges. Is that the sound of a peaceful slumber we hear?