@Lovacott : I have a fair experience of doing long/short rides when sleep-deprived, eating at odd hours, and a bit of knowledge of blood-sugar levels:
I think your biology is so different from most of ours that I'd recommend seeing a sleep expert, and looking at it from that end (i.e. how your nutrients are effecting your sleep signals). It will be easier to fix your ride nutrition once you understand the sleep issues better (ideally you will get back to 6hour+ sleep every night,
then look at your cycling needs).
Good luck!
I do suffer from sleep deprivation quite badly. It's not Sleep Apnea because since about a month after I started cycling, the little bit of snoring I did has gone away (according to the OH).
But I have this habit of waking up two hours before the alarm and being fully wired and ready to go. I know that I should go back to sleep, but I can't do it.
I've tried different pillows, blackout blinds, earplugs, cutting out caffeine after 7am and avoiding tech and telly after 10pm.
I use a sleep tracker which tells me that the the majority of my sleep is either REM or light sleep and the missus says that I often mumble in my sleep as well.
When I first wake up (around 4.30am), I am full of beans but by around 10am, I feel like I've spent a month in Ibiza clubbing.
I'm going down the CBD route because I reckon my lack of sleep is down to either stress or anxiety issues as opposed to something physical like snoring or sugar spikes.
The CBD will take about two weeks to properly kick in according to what I've heard.