Landed at CDG at 7 AM, Exhausted? The Guide to Showering and Sleeping in Central Paris Before Your 3 PM Check-in

Just got off a red-eye at Roissy, completely drained, with 8 hours to kill before your check-in? Discover the action plan to turn this long wait into a restorative break: take the RER B directly to a private refuge in Châtelet for a shower and a real nap.