The Super Sleeper applicaton allows you to quickly change the type of sleep that your Intel based Mac performs when it goes to sleep. By default OS X will not only sleep to RAM but also writes out a hibernate file just in case power is lost while the system is sleeping. For many people who are close to power all of the time, the use of a hibernate file is overkill. If you are willing to sacrifice the safety net of hibernate, then using RAM based sleep is much faster when putting your notebook to sleep. On a MacBook Pro the difference is time is 10-30 seconds versus 2-3.
What's new in Super Sleeper
Version 1.0.3: Release notes were unavailable when this listing was updated.