Have you ever wondered what do horses do at night in their stables?
Many people think that horses should stay out during the day and in at night. The truth is that people have been keeping their horses on a human schedule regarding meals and bedtime. But it turns out that horses are far more active at night than they are during the day. This applies to all of them, no matter their age.
At night they eat, walk and drink water all the time, which probes that they can be as energetic as always. In fact, they sleep once or twice for very brief periods of time. One of the reasons for this behavior would be that they have excellent night vision, which is why they are highly adapted to sports and activities after the sun goes down, such as polo night.