Apple Watch Series 3 Sleep Tracking

All we know about the new Apple Watch Series 3 that it will not have sleep tracking support. Neither does Apple Watch Series 2 And Apple Watch Series 1 have that feature, can we hope for that in Apple Watch Series 4?

Here is a video about Apple Watch Series 2:

About 

My name is David and I'm a total tech nerd. I always have been and always will be. I've really gotten into smartwatches since they've come out. They show great potential to change our lives almost as much, if not just as much, as smartphones have. I'm also an internet entrepreneur that makes my living via tech. Feel free to contact me with any questions or comments you have!