Hot answers tagged safety
You can easily spend that time at the airport. There are multiple lounges, and some are even open 24/7. If you really want to spend your time relaxed; try the pranaam lounge - a 6 hour pass will cost between 45 and 55 USD. Your credit card may also grant you access to the loyalty lounge at Terminal 2.
The to-go guide for these question is http://www.sleepinginairports.net/asia/bombay.htm this website. It would seem from these reviews there shouldn't be a problem except it might be uncomfortable even for an airport.
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