Girls hi! The baby doesn't want to sleep on a flat surface, somehow th…

Girls hi! The baby doesn't want to sleep on a flat surface, somehow they started lifting their head, and then he started gagging in his sleep and crying, and now he sleeps like that for a couple of weeks, on a pillow at an angle of 15-20 degrees. Now I lie down and think, is it comfortable for him, is there any strain on his back, etc. Can't fall asleep anymore Next week we will see the doctor, but I want to read this here