What is it to sleep with somebody you love and loves you? While your bodies rest do your souls dance together and chat and go on meandering little walks where you point out cute dream-realm creatures and sparkly unconscious flowers? I think so.

If you don't love each other do your souls ninja-kick and headlock each other or do you just meander alone?

If you sleep by yourself do you unconsciously call the ones you love on the telepathic telephone and ask them to meet you on an other-world hill? I think so.
Unless you are busy with monsters.

But then maybe they will help you fight the monsters?
I don't know.

If they aren't familiar with monsters, are there places you shouldn't take them? Hills you should not meet on? Creatures you should not point out? Probably.

I like sleeping with someone I love and who loves me. I like it a lot.