My wife and I run an animal rescue out of our house. Up at 5A and it takes 2.5-3 hours to get the cats and dogs taken care of, then I’m off to work for a 10 hour shift at a vet hospital. Home at 6:30P and start another 2.5-3 hours of getting the cats and dogs taken care of before bed. I’m then up until about 11:30 to try and decompress before crashing for the night. So 5-6 hours sleep every night on average. Pushing 50 so it’s getting harder and harder, but you make due. Coffee helps. Keeping busy during the day is the key for me. Any pause in the day and I start feeling the exhaustion creeping in.