Sleep is the one habit I protect most fiercely, because absolutely everything else gets easier when I am properly rested. My evenings stay calm, screens go away early and a few small habits, including xhealth, round out the wind-down nicely. I treat good sleep as the foundation rather than an afterthought I squeeze in. When I rest well, my whole routine simply works better the next day. It really is that straightforward for me. If you want to read more about wellness habits, you can find more here: http://shirayuki.saiin.net/~honey/clam/bbssub/res2.cgi