SweetSpot starts showing predictions at 2 months of age. However, sleep is still quite irregular at this age, so you will want to watch for sleepy cues. SweetSpot works best at 4 months to 5 years of age.
A newborn’s sleep is expected to be quite irregular, so it is more difficult to predict. We recommend newborns sleep after being awake 45-120 minutes, and to follow sleepy cues.