before I started this fast, I used to sleep like a rock. but now I wake up so easily and so early. the other day I woke up at 4:30 and just today my sibling was running around getting ready and I used to sleep through it, but as soon as they start making noise I’m up 🙃
Plus, and just my unscientific experience, is that your body doesn’t need to rest as deeply. Basically you have more energy. It could be the cortisol or less “metabolic stress.” But for whatever reason, yes it’s a real side effect.