Model Y L camping?

Hi all,

Can any Model Y L owners confirm how flat the seats fold down?

Has anyone tried the Tesla camping mattress for the Y L, and does it feel flat when you’re actually lying on it, or is there a noticeable slope or unevenness?

I’ve wanted a Model Y for camping for a LONG time, and I’m wondering how much more usable sleeping space the Y L offers.

Even something like 20% more room would make a big difference back there, but having a comfortably flat sleeping surface is essential for me.

Would really appreciate firsthand experiences or photos showing the setup from the side. Thanks!