Like the rest of the airport, Changi's lounges are also among the very best. In Terminal Two, Singapore Airlines operates separate first and business class lounges open to their customers as well as members of the Star Alliance.
The business class lounge in Terminal Two is definitely designed for business. There is free wi-fi connectivity throughout the lounge, and there are many comfortable workstations to make it easy to work while seated in soft arm chairs. If you didn't bring your own notebook, there are several computers available for use in an alcove off the main room. A generous buffet has sandwiches, some hot finger foods as well as fruit juices, soft drinks and selected alcoholic drinks. Showers are available in the rest rooms.
Malaysia Airlines also operates its own lounge in Terminal Two, while in Terminal One, Thai Airways operates a lounge also available to Star Alliance Gold card holders. Lastly, British Airways and Qantas also jointly operate a lounge. The Thai lounge has the usual amenities of free food and drinks, magazines and wi-fi internet access (although the security parameters may make using the internet problematic). There is just one computer for internet use by those without their own laptop. Note that the lounge has no bathrooms of its own. You must use the public restrooms just down the hall.
Plaza Premium Lounge
Available in both terminals, the Plaza Premium Lounge is open to United Mileage Plus members, Priority Pass holders, as well as those purchasing a visit through our partner Viator (see below). The plaza lounge features a small gym, showers, wi-fi, internet access and all the other amenities.
Transit Hotel
If you have a long lay-over in Singapore, there are transit hotels in both main terminals where you can sleep and shower. Rooms run from around S$ 57.75 (36.53 USD) for a six hour stay in a single room. A shower only will cost you S$ 8.40 (5.31 USD).