SSD Sleep or Shut Down?
Unless you do some serious data crunching with your Mac, you shouldn't need to worry about SSD wear. It does happen, but any relatively recent SSD does a lot to combat it, both by minimizing write amplification, and by setting aside spare area to do wear levelling and compensate for bad flash.

If you're really worried about it, you can still sleep, but not use hibernate mode, meaning that nothing gets written to disk. Just open Terminal and run sudo pmset hibernatemode 0. You can then delete the sleep file to free up some space: sudo rm -rf /var/vm/sleepimage.