If an airport lounge is open 24 hours per day and lets you stay as long as you want, then you can most likely sleep there with no issue. However, many airport lounges aren't designed for overnight stays. Once you have a lounge in mind, make sure to check the following: Hours of operation: Many lounges close at night.

No, you generally cannot stay in an airport lounge once it has closed for the night. Most airline-operated and independent lounges (like Priority Pass or Centurion lounges) have strict closing times to allow for deep cleaning, maintenance, and staff changes. When the lounge reaches its closing hour, staff will politely ask all remaining guests to depart. However, in 2026, some major international hubs (like Singapore Changi, Doha Hamad, or Dubai International) feature 24-hour lounges or transit hotels specifically designed for travelers with overnight layovers. If your lounge is closing and you still have hours until your flight, you might be redirected to a "rest zone" in the public terminal or a 24-hour cafe. It is a smart practice in 2026 to check the operating hours on your lounge's mobile app before you arrive, especially if you are traveling on a late-night or early-morning itinerary.