combination for me
3 years ago...
Got a load of blood and vitamin tests done and discovered low on everything especially vit d.
Started extreme vitamin d, vit k2, magnesium and calcium supplementation under doctor care
Also needed to lose weight. I've done that now and near target - long and ongoing process. This cured sleep apnoea as well as giving me more energy
I needed to conquer sleep, a terrible insomniac. I banned naps and lie ins to re-train my circadian rhythm, plus the vitamin d and all other steps mentioned in this post have helped enormously with it too
Pre and pro biotics. I felt the biggest difference in my wellbeing and sleep from taking inulin, a pre-biotic, just a form of soluble fibre. Amazing stuff.
I changed my entire lifestyle from sedentary and a lot of processed food/takeaway to all home cooked good stuff especially leafy greens and plenty of exercise
I became teetotal. Alcohol, even one glass, leaves me drained and listless the next day.
Recently repeated the blood tests and now everything is in optimal levels, I sleep like a baby, tons of energy. I don't think I'd be where i am now without the combination of everything. Bear in mind it is a long haul and you won't feel much of it for at least 2 months or so but have to keep going.