I tried to WILD last night after a brief WBTB.
When I got back into bed and began to relax, my breathing became a bit shallower as I was trying to "sleep breathe". I know this isn't dangerous or anything, however, after a while it felt like I really had to take a big breath in. It got me and I did. I didn't even borderline on SP that night.

This hasn't happened before, and I'd like to know if anyone else has experienced this.