As I’ve mentioned in several other threads, I am going to spend the upcoming summer in Alaska. I’ve talked to other people who have been there before, and the general consensus is that once I arrive, I will simply feel naturally inclined to sleep less due to the longer daylight. But I’m skeptical about this, because my natural sleep rythms have never seemed to care much about daylight anyway. So now I’m wondering, is there any solid evidence that people who move to regions with longer stretches of natural light automatically adjust to sleeping less?
Ooo! Ooo! Be our guinea pig!
I’ve travelled above the Arctic Circle in summer with 24 hours of light. I slept normally. Most rooms have blackout curtains.
YSMV
I used to work shifts that completely inverted my sleep cycle every two weeks. 5am wakeup became 5am bedtime. I found that I needed far less sleep when I slept during the day. Felt more refreshed too. For me, sunshine makes a very real difference in the amount of sleep I require.
this is IMHO teritory, but here goes:
I find that I need somewhat less sleep during summer. Or actually - I need more than normal during the darker winter months. When sunrise is 8.30 and sunset is 3.30 ( with overcast dull weather during the day), the task of getting out of bed in the morning is heavier.