The Oura tracker provides a lot of insight into sleeping patters, for example, last night I only got 1.3hrs of deep sleep out of 5hrs as the kids kept waking up

The Oura tracker provides a lot of insight into sleeping patters, for example, last night I only got 1.3hrs of deep sleep out of 5hrs as the kids kept waking up so it wrecked havoc on my deep sleep. But you are 100% correct, there is more to sleep than simply closing your eyes and preparing for a good nights rest starts as early as the time when you wake up.