Yes, probably. In Italy roller shutters on windows are ubiquitous, and keeping them shut all the way down will make it much easier to me to sleep until noon or even later; whereas if I go somewhere with no shutters at all it's pretty hard for me to stay asleep long after dawn (though I'll feel sleepy again in the afternoon). (But personally, no matter how dark my room is, it would be nearly impossible to sleep nine hours more than three nights in a row or so.)
This is the public group instrumental rationality diary for Christmas week. It's a place to record and chat about it if you have done, or are actively doing, things like:
Or anything else interesting which you want to share, so that other people can think about it, and perhaps be inspired to take action themselves. Try to include enough details so that everyone can use each other's experiences to learn about what tends to work out, and what doesn't tend to work out.
Thanks to everyone who contributes, and I hope everyone is having a nice holiday!
Previous diary; archive of prior diaries.