Don't count snooze time as wake time. Omit snooze time in metric.
Yeah, if one keeps hitting snooze, obviously they are still sleeping. Sometimes It's not been imperative that I wake at certain times like on days off but then again I set an alarm so that I don't sleep all day and up all night throwing my schedule so far off (which is why I set an alarm every single day, I usually set several alarms on my phone). I've been known to sleep through while hitting my snooze button every 2 minutes for over two hours before actually fully waking up... so, obviously I'm still sleeping and I think the app should reflect that. (Not certain what kind of sleep it is but think perhaps it is deep enough or I'd get the heck outta bed)
When I snooze it counts this as wake time and decreases the sleep quality percent. Other sleep tracking apps allow you to remove this time not allowing it to count against your sleep quality measurement.