How did dinosaur sleep?

You may look at modern animals such as herd animals. Some types of dinosaurs' sleep standing up, while others sleep flat down or on with their legs folded up below them. Animals such as cows, lambs, and horses may sleep standing up. Similar herbivores, such as the armoured dinosaur's stegosaurus and ankylosaurus, may have slept standing up or with their legs folded below them, however this has not been proven. It should have been impossible for them to lay down and rise up simply and fast.

Similar dinosaurs with spikes, such as kentrosaurus, would have struggled to sleep on their sides and would have slept standing up or on their folded legs. The dinosaurs that may have slept standing up or on their folded legs might have been strongly spiky or armored dinosaurs, making getting up on their side extremely difficult.

Similar dinosaurs with spikes, such as kentrosaurus, would have struggled to sleep on their sides and would have slept standing up or on their folded legs. The dinosaurs that may have slept standing up or on their folded legs might have been strongly spiky or armored dinosaurs, making getting up on their side extremely difficult.