When your baby is in the Double Back Hammock and has fallen asleep, you can cover his or her head with the strap on the side where it leans. To do this, grasp the top edge of the strap as close to your child's head as possible. Pull it up to release some of the fabric. Slip the excess over Baby's head (over his hair, not his face).
The manoeuvre can be made easier if you lean forward a little to bring your baby's head towards you.
Important: When the baby is sleeping, his limbs relax, you can readjust the sling. Pull up his knees again so that his head is held.