I’ve lived in Finland for most of my 40-odd years but I can never get over how weird the nightless nights feel at the beginning of every summer.
It’s 3am and this is as about as dark as it gets. That just ain’t right, it ain’t natural. Makes a person wish for thicker curtains
But it gets corrected in winter with neverending night. I’m not quite as far north as you, here the longest day of the year goes from about 5:30 a.m. to 10 p.m. or so. But then winter comes and it’s dark at 8 a.m. and dark again at 4 p.m.