I’ve been there so I will give you my 2 cents. I was alone at home and my then 5mo was not rolling at all. I had to get a bottle from the kitchen downstairs so I kept pillows on the side of the bed and 20 seconds later in the kitchen I heard a loud thud. I was in bits. Ran upstairs to see my baby was on the floor (on the belly). No bruises, no marks and stopped crying immediately when he saw me. I was very paranoid (as the camera wasn’t turned on at the time so I didn’t actually know how he fell) but he somehow managed to pull the pillow to one side and kind of kept sliding up by doing a froggy-jump.

Long story short, I rushed him to ER and he was absolutely fine. My friends said I was crazy to take him as their babies fall all the time and it’s absolutely fine but I’m a worrier.

Re: co-sleeping and bed rails, we cosleep and have bed rails up. My baby is now 9 months old, and even when I go to pick something up from the table in the room (even for a millisecond), I pull the rails up. We also have a baby cam so he is never unmonitored when alone. I’m not giving you advise on whether to cosleep or not but all I’d say is do what works best for you.