Yes, it’s perfectly safe to use SNOO if your baby is prone to spitting. While any baby can spit up when put down on their back, SNOO’s rocking does not increase spitting up. In addition, babies naturally turn their head when they spit up, so choking is not a concern. When babies cry, they tend to tighten their stomachs and spit up even more. Since SNOO reduces crying, it usually reduces spitting up.