Depending on the class of the Wormhole, i wouldnt recommend taking your Orca to the actual Grav or Ladar site without making sure its cleared. Approximately 20 to 30 minutes after spawning/loading grid on a scanned out anomoly sleepers will warp in. Once you kill those you will be ok til the anomaly despawns.

i generally either anchor and turn up a small tower in a wh; if im doing a mining raid and then leaving, or a medium/large tower if im staying for an extended period of time.

With the changes to the sleepers as of last major patch they now Neut your cap, so they did get significantly harder. Pre-Incursion, the hardest rats were the Sleepers, and they are still very hard (depending on the class of wormhole it is).

Sleepers have omni tanks, and also do omni damage. Your fits need to make sure they are fitted for omni damage. Also each class of WH has a different set limit on what can enter the hole. Getting info on the hole before entering is also a good thing to get use to as it will tell you if it was passed through and/or if its close to dieing.

I lived out of a hole for roughly 2 years prior to going to 0.0. Its a great thing if you can make peace with the unknown, as wormholes are truly a suprise when a fleet of several ships show up to gank you and you didnt see them coming.

Multiboxers excel in such a place however, as i had 2 recon pilots watching each entry point, or at least watching as many as i could.

Note: Make sure your directional scanner is up and you are clicking scan at max range in all directions ever few seconds, that will be your biggest ally in staying safe.