Some strap pillows to their heads to make it feel more like lying down.

有的宇航员还会把枕头戴在头上，让自己感觉像是躺着睡觉一样。

youdao

You know people are going to put their heads down and put some hard work in, but it's going to be kind of lively as well.

BBC: Everton ready to win Cup - Moyes

She did another walk-through and saw her staffers rubbing the backs of their students, some of whom -- with their heads down and hands over their heads -- sang.

CNN: SHARE THIS

Apparently, this is all down to some future gazing by the pointy heads at BT.

BBC: 10 THINGS WE DIDN'T KNOW THIS TIME LAST WEEK