This is what I say:
Whatever.
Meaning, whatever to whatever the friends say.
Just do what YOU want to do.
This is YOUR baby.
Not theirs.
Her rolling over is normal. She is changing per motor-skills. Tis' normal stuff.
Each time a baby changes developmentally and per motor-skills, little tweaks like this will happen and it will affect their sleep.
But, yes, there is also 'safety', per a baby. They cannot yet, untangle themselves or do it at-will. Their coordination is not yet, fine tuned or reactionary.
And yes, some babies do sleep better, on their own, without being next to someone. Just like some adults. Each person being different.
So you just gotta try it or not.
OR, sleep on the floor, on a floor futon, with her. I did that too. I co-slept with my kids & nursed on-demand 24/7, day and night. But not in our bed, I did it on the floor futon we have in our room. I co-slept with them there. In our room.
I had no blankets/pillows there, hence reducing safety/tangling issues per a baby. And if they rolled around, they could not roll OFF, of it. Because, the futon was ON the floor.
At a certain age, my son did sleep in his crib and loved it. But for some moments and naps, I did co-sleep. As needed.
My Daughter, never really slept in a crib at all. Hated it. I co-slept with her. On the floor futon we have. In our room.
Each kid, being different.
The BOTTOM line is: do as you feel is best.
NOT according to what your friends, are telling you to do.
That is them.
This is you.
all the best,
Susan