Hi there and welcome to BW,
I suspect she's getting too much sleep during the day, so she's waking up to play!
From what you've posted, her first A time is one hour, followed by a 3.5 hr (4.5hr?) nap, then another A of 1.5-2.5hrs with a 1.5 hr nap, then a 1.5 hr A, with a 1 hr nap, and BT is scheduled for an hour later, more or less. Daytime sleep is a minimum of 6 hours, unless I am misreading you, whereas I'd have been aiming for around 4hr 45 mins at this age. So I think daytime sleep needs to be reduced a bit, but not drastically. An hour less will make a huge difference, I think.
On BW we are guided by average A times for particular ages, now some babies need more and some less, but the average A for a 4 mo is 1 hr 45-2 hrs. So I would definitely be increasing those A times, and that means, I'm afraid, that I would also be waking her from naps during the day as needed. I would certainly cut her off at 2 hrs, unless you feel very strongly that she needs more sleep in the day though, as I say, I think she's sleeping so much in the day that she doesn't need to settle at night, iyswim. I would try to average the reduction in sleep out over the day.
You could have a look here for some sample routines for her age group
chronological EASY samples, 4-6 monthsRemember EASY is not a fixed schedule but a flexible routine to fit to your baby's needs, so you can tweak it, but be guided by the average.
