There are many uses for the Neck and Knee Nanny as shown below
To maximize the benefits from the Nanny please use as shown.

While lying on your back keep the "legs" up and cradle your head; this supports you neck and keeps your head from rolling down

Nestle your head in the Nanny with the "legs" up while lying on your side

Place the Nanny with the "legs" up between you and your chair back or your car seat to add support to your lower back

Place the Nanny between your knees while lying on your side to ease the stress on your hips and lower back