(CBS) The Consumer Product Safety Commission has recalled 30,000 "Nap Nanny" portable baby recliners after a 4-month-old Royal Oak, Mich. girl reportedly died in one of the recliners that was being used in a crib.

The child was found strapped into her harness and hanging over the side of the recliner, caught between it and the crib bumper, according to the CPSC website.

The commission and the product's manufacturer, Baby Matters, are aware of other cases in which infants, primarily those under 5 months of age, became trapped in or fell out of one of the recliners.

Infants can partially fall or hang over the side of the recliner even when they are strapped into the harness that comes with the product. The risk is greater if the product's straps are not properly attached to the D rings, or if consumers use a first-generation Nap Nanny, which was sold without D rings.

The Nap Nanny is designed for sleeping, resting, and playing. It's intended for use on the floor, away from cribs and any other products. If the product is used on a counter or other elevated surface, the child could fall out and sustain a serious head injury.

The recalled Nap Nannys were sold for about $130 at toy and children's retail stores nationwide and online, including at www.napnanny.com, from January 2009 through July 2010.

Consumers with a first-generation Nap Nanny should stop using the product immediately and contact the firm to receive an $80 coupon towards the purchase of a new Nap Nanny. Those with a second-generation model should immediately stop using the product until they view product warnings and instructions on the manufacturer's website