I really don't wonder how people sleep with 24 hour sunlight. That I can imagine. (I imagine they do not sleep well.) What I do wonder about is how they grow houseplants. I know they grow wonderful flowers outside; I've been to southeast Alaska in early September. This is an interesting website that talks about gardening on Kodiak Island, for example.
But I've never been to the true northern part of Alaska. You can't really grow houseplants there without artificial light in the winter, can you?
Or can you?
This article is a bit scientific, but it talks about growing jade plants in Alaska.
How do houseplants cope with the uneven distribution of sunlight in Alaska?