My little one is 10 weeks and has never liked being flat on his back. After his immunisations at 8 weeks and then at 9 weeks having a bad cold this has got much worse at night and he now will only sleep in our bed propped up on my pillows. He is in a sleep bag and I keep our bedcover well off him but this isn’t ideal safety wise for him and sleep wise for us. I’m considering buying a wedge to put underneath the head end of the cot mattress. My baby will be in a sleep bag so no risk of him creeping down under blankets but is it still dangerous? Any advice or suggestions would be much appreciated! We have been given a small trial amount of baby gaviscon to try him with by the doc (I had to push doc to prescribe) but as baby is full of a cold it’s not making much difference and I’m not using it upto full dose as only have a small amount to try with!