Rolling Baby!!

Sami first rolled from belly to back in September. She's still not a pro at it but it can be done. Last night she rolled from back to belly!!! First time! She just did it again today. She seems to be better at this than the belly to back roll.
Her strength in her head and neck muscles has increased substantially in the last month. She sits in her swing now and holds her head up, trying to sit up while it's swinging. Same with her bouncy seat, she does baby crunches trying to sit up straight.

Her sleeping habits haven't improved yet. She is still up about two times a night. She usually goes down around 8-8:30pm and is up between 1-2:30 am and again around 4:30-6:00 am then up for the day between 7:30 and 8 a.m.
On Monday she took a long morning nap, almost 4 hours long! I think it was because it was dark and rainy out. She was confused, lol. But now she has been on nap strike! How do I fix this? She refuses to nap which makes for a very fussy day.
Today she napped for about 15 minutes in the car and then another quick nap for about 30 minutes. She is just fussy and wanting to nurse constantly. I am a human pacifier! She's not hungry, but wants to eat/nurse all day then spits it all back up because she's full! What a waste.

Not sure what the nap strike is about but I hope it ends soon. Tomorrow we go to pick up her brother after school so that means a 2 hour car ride which hopefully she'll sleep through and maybe that will put her back on track.
Wish us luck!