Nice list. I second having better sleep with white/brown noise. Be careful with in ears though. Don't wanna catch an infection. Also rolling over one ear piece may wake you up again, sabotaging the sleep.

I may add, as it's not mentioned in the article: co2. My 55m^2 flat barely stays below critical co2 levels without ventilation for a 7 hour sleep. So keeping all doors open is crucial and/or a window slightly open on the other side of the apartment. Closing the bedroom door - which I sometimes did when as I wasn't aware of this yet - was a recipe for a headaches and bad recovery.

For waking up, having natural light or other sources of light turn on before the actual alarm clock rings is nice to feel better in the morning.