in a cave.
yes they can sleep
cave
the answer is no
No -- Well, yes and no... they're metaturnal, which means they sleep a little in the daytime and a little in the nighttime.
in a cave
In a cave.
In a cave. Seriously, if its called a caveman where else would he sleep?
caves
Yes. Here's a definition:den: a cave. Dinosaurs sleep in dens.
Either in a cave or ain the grass
i think dolphins sleep in a cave.:)