Mine are inside. Granted I don't live in a house, but I don't see them staying outside without me there. If they are on the tie out and I run in for a second, I come back to all of them at the patio window looking for me. All three of them are my shadows. I do see them spending lots of time outside if the weather permits. They will always sleep indoors at night.
Misty- Samoyed Mix, Tannor- Golden Retriever CGC
Robyn- GSD CGC, TC, Midnite-GSD CGC,TC, Brennan-Golden Retriever CGC, Batman-Husky/Greyhound , Apollo-GSD