It depends on where they sleep, for how long, and why. Is this a cultural lifestyle or particular to this one individual? Are they seasonal farmers or herdsmen? Are they off-the-grid hippies? Down-on-their-luck families who lost their home? Addicts?
Some options are:
itinerant
gypsy
hobo
homeless
nomad
tinker
traveler
vagabond
vagrant
wanderer
I would call such a person inhospitable.
A person who wanders around with no home is commonly referred to as a nomad or a vagabond.
moofer
Freelancers
Homeless
Normal.
A Nommad
call police, contact a parent or guardian, call trusted person.
Did you mean a person who prefers to stay at home and not go outside? I believe the word you are looking for is a recluse.
If you have hurt the person, then it is right to ask for forgiveness. Call the person and talk to her.
house keeper
If you mean that a person died at home, in the United States you call 911. They will send out the Emergency Medial Team (EMTs) who will call the police who will call the coroner. The coroner will come and declare that person is dead and issue the death certificate.