If you have a Mac laptop with 8 GB or more RAM memory and an SSD drive, the default Sleep setting in OSX will significantly decrease the lifespan of your SSD drive.
By default, OSX will always save the full contents of your RAM memory to your SSD drive every time you put your laptop to sleep. This feature, called “Safe Sleep” is handy if you have your laptop in sleep mode for weeks and the power runs out. For most use cases however it’s more or less useless, and can safely be disabled.
I have posted detailed instructions on how to disable the Safe Sleep feature on my Mac OSX tips page

