Practice good sleep hygiene. Sleep on a schedule, but wake up after 2-3 hours sleep. Any suggestions?

Insomnia. Some quick tips. Look up healthy sleep habits online. Create a consistent wake time and avoid naps. Go to bed only when you are tired. If you can't fall asleep within 20 mins, get out of bed until you're tired again. Avoid substances that impact sleep, like drugs and alcohol.
Terminal Insomnia. Many many people have trouble staying asleep and have disrupted sleep. Unfortunate that a lot of things we do and meds we take to get to sleep can contribute.These are short term and over shoot to wakefulness after a short time. A med re-eval and cognitive behavioral therapy can both help.