Man, that is weird. When that happens to you... you wake up suddenly make sure you do a reality check or something similar. This has happened to me before (waking up right after becoming lucid) only that it is a false awakening.

Yesterday I attempted to WILD but it was really weird. Everything I saw just moved around and there where weird colors everywhere. The best way I can describe it is combining Second Attention's and Lowercase Society's avatars while on an acid trip.