My first night with a sleep tracker on and it already has told me some interesting and UNSURPRISING things.
1st session of sleep 4 hours 11 min but I woke up super thirsty and hungry. 3 hours light sleep. 1 hour 15 minutes restful sleep. second session, once I was FINALLY able to fall back to sleep was about 5 hours
17 minutes of awake time, 3h33m or light sleep and 1h25min restful sleep. Sigh.
I hope you can focus on the positive. Nine hours of sleep, whether light or deep, sounds petty good to me!
That was all total, unfortunately, but It's a good start just to get more info. 
My goal is to try to avoid taking naps on my days off work so that I'm more tired when I get to bed.
There are some interesting new studies that indicate that people without electric light (cell phones, computers....) sleep in two shifts with an hour or two in the middle.