I have a CPAP and didn't have any issues until this year. Sometimes I'll only sleep 5 hours, other times it's 10 hours. I think part of it is my husband is also waking up early, but he has muscle pain and usually goes back to sleep in about an hour, while I wake up and stay awake. I've also been having vivid dreams. Some of my meds can cause insomnia, but I didn't have any trouble until now.