A yoga mat?

Hahaha, yes. My problem is that I have a tent and one yoga mat, but I need to procure a second sleeping mat for a friend. XD

I could just invest in a second yoga mat, or in a proper sleeping mat. =P

If you vest in a second yoga mat, maybe you can get your friend to accompany you during yoga sessions. :) Alternatively, you could use a bunch of sheets (like lots) folded to make some sort of mat?

That’s a good idea. I did yoga really regularly for a while and loved it, so that might be good motivation to get back into it.