Is the Natural Curve Nursing Pillow safe to sleep on?

No. Never allow baby to sleep on the Natural Curve Nursing Pillow.

IMPORTANT: NEVER put the Natural Curve Nursing Pillow in a crib, cradle, play yard or near any area where an infant may sleep or be left unsupervised. The Natural Curve Nursing Pillow is only to be used with an adult for feeding or tummy time play under direct supervision.