if your feeling like you want to be aventurous than yes sleep outside! if your scared of the dark then no sleep inside!
Cows can and will sleep anywhere they like whenever and however they feel, or whatever their daily routine entails. If they want to sleep inside, they'll sleep inside. If they want to sleep out, they'll sleep out.
Inside of you.
How do what? sleep inside a space station? astronauts? i think um they just float. no i KNOW they float...
Inside the trenches there is dugouts. They would sleep in there.
You can sleep in a camper, you could sleep outside in a sleeping bag or you could set up a tent in sleep inside of that.
the way they sleep is by tucking their heads inside their wings. i got this from a different website
sweden
inside water
sleeep inside acassionally.
This question is answered within itself.
The Nazis had to sleep in a building inside the camp to make sure that no one could escape.
Squirrels make nests (similar to birds' nests) inside a hollow portion of a tree. That is where they sleep and raise their young.