Before i tried the 2hr nap and was doing 1.5hr nap, she was doing 6hr A, 1.5hr nap and then 5.5hr A before bed. But then about 2-3 weeks before we took the cot sides off she was doing 5hr A before nap, 2hr nap then 6hr before bed. I think it's just because of the change in the sides coming off. x