This is a sensation I get sometimes before falling asleep. I'm lying in my bed with my eyes closed, and after lying there for a while I suddenly start to imagine that I'm floating or that my bed starts rotating so that my body is spinning around. It doesn't happen every night, it seems only to happen if I'm somewhat concentrated i.e. not exhausted. It feels incredibly real, and it's actually quite amusing. So it's a bit annoying that I'm not able to do it on command.

Have anyone else had this? Do you know what I'm talking about?

I was thinking that perhaps it could help me become lucid or assist in WILDing. When I get the sensation, I know I'm so close to falling asleep, but of course that knowing is often counter-productive, it makes me get all excited about the possibility of me becoming lucid.