[thaumasiotes]

Go pull a bunch of grass, and put it in a pile. You now have a working pillow.

[olalonde]

That doesn't sound comfortable. I'd probably rather sleep on my arm than a pile of grass...

[avery17]

Im sure if you spent your whole life sleeping on the ground youd work something out to make it more comfortable

[olalonde]

But that was the point... why don't gorillas make pillows then? My contention was that making a pillow is actually difficult. I wouldn't be surprised if pillows were seldom used by early humans.

[thaumasiotes]

This is a failure of your imagination, not the grass.

[watwut]

It can be actually comfortable.