For teens who spend 25 minutes or more on Instagram every late night, over a third of that usage results from "a notification delivered within 5 minutes of starting a session on the app."

"The p90 threshold for late night (10 PM - 4 AM) time spent over the last 28 days corresponds to 25 minutes per day on IG." "35% of late night time spent for p90+ teens comes from sessions that had a notification delivered within 5 minutes of starting a session on the app."