Yes, staying in a hotel during a long layover is a common practice, and many airports even feature "transit hotels" located inside the secure area (airside), allowing you to rest without clearing customs. If the hotel is outside the airport (landside), you must pass through immigration, which may require a visa depending on the country. Most travelers consider a hotel stay worthwhile for layovers exceeding 8 to 10 hours, particularly if the connection is overnight. Some airlines, such as Qatar Airways, Emirates, and Turkish Airlines, even offer "stopover programs" that provide free or discounted hotel stays for passengers with long connections, provided certain ticket criteria are met.