
In this picture, Henry is in a very deep sleep with his eyes open.
This doesn't have anything to do with epilepsy, but I feel it's an important topic to cover regardless.
I have had many breeds and breed mixes over the years, and the sleeping pattern of the Henry has really stood out as different than any other dog we have had.
Greyhounds are known for sleeping with their eyes open, and they are known for sleeping very deeply, and they are known for having very vivid dreams and can be pretty active in their sleep with their legs and vocal noises.
It is important to be aware of this and understand this to prevent incidents from happening, and it is especially important to teach children that just because the Grey's eyes are open and you can see the black parts of the eyes does not mean the Grey is awake, and to always leave a potentially sleeping Greyhound ALONE. The Greyhound due to it's deep sleeping pattern may not realize right away it's a family member waking them and may bite before they realize that.
If you need to wake a sleeping Greyhound, do it by gently calling their name. Do not assume they are awake until they actually lift their head up.