You do not need to log these as separate sleep sessions (although you can if you’d like a better visual representation of what the nights were like).
However, in the Questionnaire it asks how often your child wakes up in the middle of the night. For that answer, please count each nursing as a "waking" (options are every 0.5-2 hours, every 2-3 hours, etc.).
This will help us to estimate where in your child’s sleep cycle your child tends to wake up, even if it is only very briefly.