This is really interesting. I may have to start tracking on my own. But I'd do it a bit differently.
One is that I don't think happiness is exactly the thing I'd track. I'd also want to track sleep cycle, not just sleep amount. My experience is that too little sleep or a disrupted sleep schedule has a negative effect on my mood stability. If I sleep enough and at roughly the same time every day, I'm more emotionally resilient.
One sleep hack I recommend to everybody is to try to avoid waking up to an alarm. I now adjust my wake time mostly by adjusting my bedtime. This certainly makes my mornings better, but it also means I fret less about getting the right number of hours, in that I trust my body to generally self-regulate on the right amount of sleep.
One is that I don't think happiness is exactly the thing I'd track. I'd also want to track sleep cycle, not just sleep amount. My experience is that too little sleep or a disrupted sleep schedule has a negative effect on my mood stability. If I sleep enough and at roughly the same time every day, I'm more emotionally resilient.
One sleep hack I recommend to everybody is to try to avoid waking up to an alarm. I now adjust my wake time mostly by adjusting my bedtime. This certainly makes my mornings better, but it also means I fret less about getting the right number of hours, in that I trust my body to generally self-regulate on the right amount of sleep.