The Cosytoes keeps your baby snug and warm and can be used from newborn to 3 years. The cosy toes for B Mobile, B Smart and B Dual also has a head hugger and protective cocoon offering extra support around your baby's head and feet. Suitable for the B Mobile, B Smart and B Dual the cosytoes will keep your baby snug and warm and can be used from newborn up to 3 years. The cosytoes comes complete with a head hugger and has a protective cocoon offering extra support around your babys head and feet.