Newborn wont sleep on back on a flat surface

[Boo2400]

How are you getting your baby to sleep on their back on a flat surface? This is obviously the recommended safe sleep position but if my baby wont sleep like that then I don't know what to do, he gets very gassy and refluxy so this is uncomfortable for him. He will only sleep on me, not next to me either in the safe sleep 7 position as he is still flat like that. I looked into the babymoov cosydream as then he isn't asleep flat and would be much happier but it says that they don't comply with safe sleep and you can only put baby flat on a flat surface. But there is no advice on what to do if baby doesn't sleep this way, it just says "babies must be on a flat surface, even if they have reflux" which is ... helpful 🙄
I have tried anti reflux milk, gripe water. Dentinix helps but it's not a cure and he still gets uncomfortable on his back. He can be fine on his back if you're holding him, and he doesn't mind bouncy chair and has fallen asleep in those so I think part of it is he just doesn't like being on a flat surface.

Mine wouldn't either. I rolled a blanket, put it in his moses basket in a U shape (upside down horseshoe) and put the fitted sheet over it and the mattress (so it wasn't possible for him to get his face under it the blanket), then swaddled him and laid him on his side in the middle. He slept perfectly well like that. As far as I could tell the advice was about avoiding having anything like pillows in the cot that they could smother themselves with so having the padding UNDER the fitted sheet worked well.

I put some bricks under one end of the cot so baby was raised and not completely flat. This helped a lot.
I know it's hard as you are tired but it's only for a really short while that they are a newborn. When visitors come, go and have a nap. It doesn't matter if the housework isn't done. Get visitors to run the hoover over.
Another trick we used was putting a hot water bottle wherever we were going to lay DS down. Removed it prior to putting him down. Going from nice warm cuddles to a hot cot or basket etc woke him up. This helped.

Have you explored a diary allergy? (No advice on the actual sleeping problem though sorry)

Neither of mine would sleep on their back, they only wanted to be held. I tried (and paid) for everything--i know it's not what you want to hear but I think the only thing that helps is time. What we did to survive was take it in shifts holding baby, and also asking family members if they could hold them during the day so I could nap. Good luck, it's horrendous but does pass quickly. And congratulations on your new baby xx

My 2 with reflux slept with their cribs tilted slightly.

It's not the safe sleep guidelines, but constantly vomiting while lying on their backs due to reflux wasn't safe either.

Are they doing anything about the reflux?

Three things that helped me get my newborn to sleep in the cot are:

Putting the sheet in my bra once it had been washed before putting in on the cot. This way the cot smelt of me and not of fresh laundry.

Waiting for baby to be in quiet sleep before transfering them. So to test if baby was ready to transfer I'd try raise their arm, if I felt resistance I knew they would wake up, whereas if their arm was floppy I could successfully transfer them to the cot without waking.

Burping/winding - making sure I spent at least 5 minutes winding after every feed, so baby upright and doing an upwards stroking movement on their back.