You’ve never been to an airport until you have been to Singapore Changi Airport.
It is a Travellers dream.
Why? Because everything is basically free. There is so much to do that you can spend hours just walking around all the terminals killing time. And not in the way you normally try at airports when looking at shitty over priced gift shops. But there is that too if that’s your thing..
Below is all the FREE (PRAISE THE LORD) things to do in Changi Airport that I would recommend for the time you have. I was there for 10 hours and was not bored, or sober but still.
Oh and a free sky train connects all three terminals every five mins 
1-2 hours:
Sunflower garden (T2)
Butterfly garden (T3)
Koi pond (T3)
TV lounge (T3)
Cactus garden (T1)
A Slide, seriously (T3)
Internet, unlimited, all terminals just sign up at a little kiosk.
MASSAGE CHAIRS (EVERYWHERE)
Rest areas with long beds yes, everywhere.
2 hours:
Gaming – Xbox and Playstation (T2)
Swimming pool (T1)
Window Shopping (everywhere)
3-4 hours:
24 hour Movie theater (T3)
5 plus hours:
Free tour of Singapore (T2)
I could not recommend this more. A free three hour tour of the best of Singapore. Free bus and all. And it was stunning, I’ve wanted to visit Singapore properly ever since! My tour guide thought he was Ricky Martin. Olay Olay Olay.
But there are some things if you are there for a long time I would say you should pay to do.
1. Gym and showers. $17 aud and totally worth it if you are doing long haul. They provide towel and hairdryers etc. And a run on the treadmill will certainly help you sleep better! And no one uses it either. So no roided guys to judge you.
2. Food and drink. Duh.
3. Hotels and beds in all terminals. Pretty pricey. But if a few are sharing could be worth it to relax. $80 plus
Seriously, this place is a holiday in itself 🌴
It's hard being cheap 