Narcoclepsy-infused insomnia

When I have early shifts in my home-working tenure (soon to end) and I don't go to bed early, my subconscious repeatedly wakes me through the night in fearful pre-emption of over-sleeping - entirely counter-productive as when my alarms do go off at 5.40 a.m. my body wants to sleep through exhaustion.  Last night, I put my head down at a reasonable 10 p.m. but my mind wasn't having any of it.  It even invaded my dreams as I time-travelled through to 5.45 a.m., woke up found it was 1.30 a.m., dropped off, sped forward to 6.05 a.m., woke up finding it to be 2 a.m., fell back asleep again to find myself at 6.15 a.m., quarter of an hour past the start of my work shift before being agitated to wake up a final time at 3 a.m., staying awake for another two hours.
I now know what Captain/Ambassador Jean-Luc Picard experienced in the final episode of Star Trek: The Next Generation - All Good Things... - as he was thrown across multiple time eras to test that he could think across them.  It was most confusing in my half-sleep as to what was the real time - the later one that I had experienced or the one I checked on my phone.  I did plump for the phone time but it was tenuous.  Now off to bed for me.