I have a question! Last night I tried re-entering an abruptly ended lucid, and had a lot of gravity hypnagogia and odd thoughts, I found it really hard to count but just kept nudging my awareness back from the void. Eventually, though, the hypnagogia kinda stopped and my mind seemed blank, or sleepy. After a few minutes of nothingness I did a reality check that proved I was still awake.
Do you think my REM period was at it's last legs, and I was just sniffing it's fumes trying to re-enter? 🤔
There is a good chance you were running on fumes, especially if this was near the 7.5-8 hour mark, IMO, but always keep trying like you did.