“…The link between postural control in lying and attaining functional sitting is well-documented; children with CP at Levels IV-V on the Gross Motor Function Classification System (GMFCS) are recommended to begin posture management programs in lying as soon as possible, in sitting at 6-months, and in standing at 12-months [ 22 , 23 ]. This contrasts with standard efforts in North America that under-prioritize providing positioning supports in the lying orientation, with the exception of preterm babies [ [24] , [25] , [26] ].…”