Anyways- my point is do you put your babe to sleep in their belly or back only?? I'm still a little apprehensive (old habits are hard to change) but he really sleeps better when on his stomach.
My first was only allowed on his back. My second would only sleep on her tummy & it was easier to change her diaper w/out waking her in the middle of the night. My 3rd & 4th sleep all ways, though my 4th really seems to prefer lying on her side. There has been an upspike in the last 20 years of "flat head", I read about. Not that a flat head bothers me. I think the risk is just as high for SIDS, co-sleeping as belly sleeping though I've no figures to back that up, just read that both are bad things. The only SIDS baby I knew died in her swing, 3 months old, reclined on her back.
We are allowing Holly to sleep on her back and tummy. When we put her on her back she tends to roll onto her side on her own. We have one of those breathing monitors that goes under her mattress so that allows me to have a bit more confidence when I put her on her tummy. In fact, tummy sleeping is how I realized she can roll over. I had set her down for a nap on her tummy. When I returned a few hours later I found her on her back!!
Although we bought a bassinet, Amelia just sleeps in bed next to me, with Ela on my other side in her side-carred crib. So Amelia is usually on her side facing me (for easy boob access!) I'll sometimes put her on her back, but she often makes her way onto her side on her own, so I figure that's how she is most comfortable.
I've actually read that napping on the tummy is helpful for reflux, possibly even more so than sleeping propped upright. I'll try to see if I can find that link.
My second baby liked to tummy sleep. My Romanian MIL is the one that started it. She noticed he was having trouble sleeping so just turned him on his tummy. I was like, um, OK. I had always stuck with putting my first on his back LOL. Well, it worked well, so, I'm all about whatever works. Make sure of course there's nothing close to the face to potentially block the airways/use common sense. But, yeah, I think it's fine if you are comfortable with it.