Ask HN: Best way to read HN threads on e-ink device?

I noticed I bookmark a lot of interesting HN threads, because there are often 200+ comments and I don't have time to read them all. As the collection of bookmarks is now quite big, I wanted to read one thread every night before bed on my kindle device.

Can someone suggest what would be the best way to achieve this? I would like to download all the comments at once and have the same functionality of "collapsing" comments on the kindle if possible.