What is the safe method for elevating an infant's upper body during sleep for reflux management?

Placing blocks securely under the mattress at the head end.

Safe management of reflux in sleeping infants requires positional changes that utilize gravity to keep stomach contents down, but these changes must prioritize safety above all else to prevent suffocation risks. The recommended method involves elevating the infant’s entire upper body by raising the head of the bed structure itself. This is achieved by securely placing blocks or risers underneath the mattress at the head end. It is explicitly warned against placing any soft materials, such as pillows or wedges, directly under the baby’s head or between the mattress and the crib frame. Such modifications can create unstable surfaces, posing significant dangers related to suffocation or potentially causing the infant to roll into an unsafe position.