You wont have any problems whatsoever.

Changi is an amazing airport, with so many things to do. Please refer to this page for more information http://backpackerlee.wordpress.com/2...-best-airport/

From around 5am onwards, the planes begin to take off and land again, so you may be able to do some plane-spotting.

The transit Hotel in Terminal 3 is where I spend a good 6-12 hours every time I am passing through. Call me sad, but I often plan my flights so that I can spend as long in transit as possible. Changi is not a normal airport - it is a 24hr luxury shopping mall that just so happens to have planes outside instead of cars.

Rates for the transit hotel are around £50 for 6 hours and you get free LAN. All rooms have ensuite bathrooms and televisions and coffee making facilities.