If you use both Sleep Cycle and Life Cycle, you're in for a treat. At Freemium level, you can sync both apps through Health Kit and benefit from accurate sleep tracking in Life Cycle, from Sleep Cycle. Life Cycle has its own algoritm for sleep, but for top accuracy, Sleep Cycle is the better choice.
If you're a Premium subscriber, you also get the Sleep Quality value from Sleep Cycle interpreted into Life Cycle and mapped towards your locations and events. In time, the more you use both apps together, you'll get an accurate and quite revealing idea of what kind of activities and what kind of places, have an impact on how well you sleep.