I also like overnight oats, your version sounds great.
I just want to call out that both rolled barley and rolled rye are very similar to oats in texture and prep. The barley has a much lighter flavor and rye has a nice burst of flavor, I like to mix a bit into oats for some variety.
This take is so hot, really though, where did the groat hurt you?
Explain yourself, are you using whole or flaked grains for porridge?
Also barley, am I a joke to you?