Features: -Offers a perfect position for baby to facilitate digestion. -Thanks to its inclined plane of 15%, the airways are perfectly clear. -The shape memory foam adapts to the morphology of the infant in dorsal position. -The integrated headrest is ideal for baby to keep a round head. -Modular positioning roller in microbeads ensures a perfect support of the back and raises the legs of baby. -This position reassures baby and allows him to sleep serenely -Its ultra soft materials and fleece edges guarantee optimal comfort. -The seat belt keeps baby on the back and prevents it from slipping. -From birth until 3 months * No longer use from the moment baby turns alone Fabric of the mattress: Heather gray: 65% cotton & 35% polyester Fabric gripping and 3D mesh: 100% polyester. Bias: 92% cotton & 8% elastane. Padding: 100% polyurethane foam. Fabric of the positioning roller: Heather gray: 65% cotton & 35% polyester. Padding: micro beads 100% polystyrene. Care: Surface washable mattress with a damp cloth. Positioning roller is machine washable at 30 °.