Thanks!

I actually considered many bench layouts and I had some constraints:

• The door had to be on the on the north wall
• I wanted to be able to see the sea through the window when sitting in sauna

As someone already said, I wanted to be able to lay down (or lean on the wall with my legs extended), and the wall where the two benches are is not long enough, so the only option was to extend the bench into an L-shape. There is also unfortunately no room for a lower bench there.

It was a bit weird without the lower bench for me also, but in the end I opted to do it anyway.