I have done this before. I was trying to do it every night for a while. It is not that hard once you get the hang of it. It is like the initial stages of a WILD stretched over the whole night. If you have ever had a long string of WILDs and DEILDs, you know what it feels like. Honestly, I did not find it very beneficial. It was not worth the attention. I much prefer sleeping through the night, with limited sessions of awareness.