We all need to sleep. But if sleep costs too much, isn't that a problem?

For eons, Mankind had very inexpensive sleep costs: caves or out under the stars.

And later, teepees or other structures, as used by Native American Indians, say.

So, what about the idea of a car as a teepee made of metal skin?

Indeed, when do we call a way of sleeping, "homelessness?" For were cave-dwellers "homeless?" Or teepee-owners? What about car owners?

This book is a bit of philosophy on the word "homelessness", carried to its logical conclusion. It also offers up a number of resources for those who may desire to live a life that is less constrained by the cost of sleeping, in money, time, and flexibility.