Hi there,
I don't have insomnia, but I do often have trouble sleeping, which can be incredibly difficult. I do often feel more awake if I have had no sleep, that if I have only had an hour or so, I think this is quite common.
The NHS website has some helpful information on insomnia and tips to
improve your sleep pattern, it might be helpful for you to take a look.
As Molly suggested, talking to a GP may also be helpful. Do you think you'd be able to do thus?
Take care.