My sister and I used to build forts every Sunday night before a Monday holiday.
And sleep in them.
And usually wake up in the night with half of the fort collapsed on our faces
and sore muscles from sleeping in our tight, awkward quarters.
It was a highlight of my childhood.
(And to be honest, this spanned into my teenage years as well.)
Lucky me--I get to teach these little ones the wonder of fort-building!!