Because their stomach expands and pushes on their lungs causing them to be un able to breath.
No.
On hills, in the trees, in barns or sheds, in the grass or dirt, etc. Most cattle love to sleep on hills because they can easily see predators approaching from below.
they cant sleep pendejos!!
no, you cant sleep with a stomach during pregnancy
They do sleep on their sides because if they slept face down or face up they would suffocate
...sleep.
Most any time they feel, depending on the heat of the day or the cool of the night.
Insomnia
They can.
they dont
Absolutely! Cattle lay on their sides when they're in a deep sleep, and will get up by themselves with no trouble at all. However, this may be a different story if the animal's feet are pointed up-hill or if the body is in a bit of a dip. This is where the animal will have trouble getting up by itself and will need help to get up.
Is there any reason you think you cant sleep? have you tried valerian tea,