HALO 100% Cotton Sleepsack Swaddle, 3-Way Adjustable Wearable Blanket, TOG 1.5, Baby Blue, Small, 3-6 Months - Baby Blue - Small (Pack of 1)

Stop wrapping arms once can roll over, and def get a different color to tell apart from the smaller size, but love a sleep sack to keep him cozy and with his nighttime routine