Istanbul International Airport Hotel
Twenty-one soundproof rooms are available by the night or by the hour ($140) in this hotel’s bland but comfortable Departures Terminal wing (additional rooms are available in a second wing of the hotel, connected via shuttle to the International Arrivals Terminal, where the fitness center and restaurant are also located). For those who don’t have access to a business-class lounge, this is your best bet for a shower, a clean bed, and a bit of privacy during a long layover. The standard amenities include room service and free wireless Internet access. Reservations are essential.