Iv just had a second thought. Keep it how it was yesterday for a few days, and see if she settles into sleeping later. It may be that chopping and changing all the time is not doing her any good. 1hr AM and 1.5hr PM and after a few days see how she is doing, if she seems tired, UT, NW, etc. how does that sound? Dont let her sleep past 4pm though, so if you need to cut that a litter shorter i would. And then bt 7.15-7.30.