Mimos Pillow is Specially Designed to Distribute Pressure from the Back of Baby's Head while in the Rest Position Clinically Tested for Effectiveness - Results Published in a Health Journal. While the corrective positioning of your baby may work well up the age of 3 months; after this age, it can become very difficult to alter your baby's sleeping position.Mimos Pillow eases the pressure on your baby's head and has been shown to get great results, particularly when introduced at birth. Mimos pillow helps to relieve the pressure exerted on your baby's skull during rest and sleep. Babies usually have a preferred side which they will sleep on, meaning the pressure is usually focused on one side of the head. As a baby gets older it can be increasingly difficult to improve this sleeping position through re-positioning and Tummy Time. Re-positioning requires unwavering attention, especially during the night, and may upset your baby if they feel uncomfortable being moved out of their chosen favorite position. Mimos Pillow removes the need to worry about constantly re-positioning your baby. Simply place your baby so his or her head is located within the pillow's cavity. This will reduce the pressure by distributing the weight of the head over a much larger area of contact. Mimos Pillow is proud to boast the following accolades: 1) Effective pressure distribution on baby soft skull 2) TUV certification for Breathability. 3) European Safety certification EN71-1. 4) Textile safety certification - Oeko-Tex 100 Class 1 safe for babies. 5) Loved by parents. Made in Spain, made with care! Note: Pillow cover NOT included. The pillow can be used with OR without Mimos Cover. The special design cover is convenient for washing.