Welcome, DannyCool!
That sounds like a pretty profound dream, I'm glad you weren't scared though.

Dreams where we "wake up" like that are called false awakenings (often abbreviated to "FA" on DreamViews).
It's good to get into the habit of performing reality checks upon waking, to make it more likely that you'll become lucid during FAs.

Are you currently keeping a dream journal? Recording your dreams is a great way to improve your recall, and it can also allow you to identify common themes in your dreams (dream signs) which can help with your awareness in future dreams.

I look forward to seeing you around!