Sleeping enough but waking up exhausted
I've been carnivore for around 7 months now and originally went on this diet to improve my sleep. It helped alot, but I almost always wake up exhausted, fatigued, tired, not well rested and foggy. I usually sleep long enough hours like 6-8 hours. I go to sleep at 3-4am, wake up st 11-12am. I definitely feel like I eat enough fat, I do a 80% fat to protien, and definitely eat enough total cals. I finish my last meal about 4-5 hours before bed. And I don't drink coffee. Any suggestions or advice help.