You can adjust what counts as day vs. night sleep, and the number of naps your little one is taking, by going to the Child Profile screen (tap the icon that looks like a child’s face on the bottom navigation bar).
On the Child Profile screen, you can adjust your day vs. night start times.
If you want to adjust the number of naps, from the Child Profile screen tap on SweetSpot Settings.
Tap on the number of naps underlined to adjust your nap settings.