The adapter is still the inconvenience for me, just because the other option is a (tiny) inconvenience for you doesn’t change the fact that the adapter is an inconvenience for me.

The adapter IS the inconvenience.

For a side sleeper I recommend going to a mattress store with a friend and your pillow. You lay down on the mattress and your friend checks if your back is straight, it’s easily visible:

I went to a mattress boutique and ordered my mattress there. I would never do it differently again, I love it every night. The saleswoman took great care of trying the different mattresses to see which one had the backs of my girlfriend and I in the best positions and whenever I’m back from a trip I feel again the greatness of my mattress

I wouldnt say incapable. Before I joined I was unsure about this whole federation thing as well. I was worried that I have to sign up to multiple instances (and this is actually not untrue, because of defederation) but I worried too much. It’s a lot easier than I imagined