In case of having an early morning flight or a long wait connection flight, it is possible to spend the night in the Istanbul Ataturk airport with many facilities. Both ,the international and domestic terminals remain open the 24 hours.
However, it is not the most comfortable airport to rest while waiting for the flight. Because it is a connecting airport between Europe, Medio Otriente and America, it is usually very busy during the night and therefore very noisy, with just a few seats available comparing with the number of people and the flights. Therefore, it is advised to wear earplugs and eye mask, in addition, it is good to have a blanket since at night it tends to get a little cold, especially if you will be resting on the floor.
The boarding areas are usually the most friendly for resting. In some areas (such as the baggage claim 10) there are seats without armrests whereby two or three can be used to improvise a bed. For a better place where you can find a more comfortable and private space, there are four Vip lounges that are available 24 hours (some of them with showers). Lounge access, with membership card or paying a fee at the door.
If you want to get an uninterrupted sleep, there are hotels nearby and even one inside the international terminal.
Luggage: both terminals have a 24-hour luggage storage service giving you the possibility to leave your bags, in case you have to wait for the check in.
Eating and drinking: Some cafes are open 24 hours a day, and several shops are open around the clock, as well.
Restrooms: available the 24 hours, although showers are only in VIP lounges
WI-FI: Istanbul Atatturk Airport has 2-hour of free internet access. But, if you don´t have a local cell phone number for registration, you will have to pay for the service or use the Starbucks Wi-Fi service
The TAV Airport Hotel (Tel +90 212 465 4030) is located inside Terminal 2. It is possible to find more options nearby, some of them with complimentary shuttle services to and from the airport. WOW Airport Hotel (Tel +90 212 468 5000), Radisson Blu Conference & Airport Hotel Istanbul (Tel +90 212 411 3838), Rox Hotel (Tel +90 212 551 0506), Bricks Hotel (Tel +90 212 916 1619), Airport Best Hotel (Tel +90 212 653 0050), Hotel Osaka Airport (Tel +90 212 639 2060), Niconya Port Suite & Hotel (Tel +90 212 652 2646), Orange Airport Hostel (Tel +90 212 653 9368), Grand Palace Hotel (Tel +90 212 494 3737).