I've recently been trying to get my pokemon's dream world ability, but I seem to be missing something. I put him to sleep, and went to the forest, but couldn't find him. I woke him up, and went to the forest, but didn't see anything. Do I need to let him sleep a certain amount of time? I can only do this once a day. I didn't let mine sleep long enough because I'm still working on training him and such.
Can someone explain exactly what I'm supposed to do?