My very active almost 15 month old is not going to bed until 9pm if he takes a 2 to 2.5 hour nap. He wakes around 6.30am, can sleep 2 hours plus at around 11.30am, even at daycare, then seems to need a huge awake window before bed. Even today we were out an about so he only had a 40 min car nap, was acting so tired later in the afternoon to tried to put him to bed at 6.30pm but wouldn’t sleep so got him up again and asleep at 8pm. Struggling with late nights as I’d like him asleep at 7pm (same time as my school age child) as need to do a bit of work in the evenings generally.