WASHINGTON - The government is warning consumers to inspect Fisher-Price Newborn Rock 'N Play Sleepers due to risk of exposure to mold for infants who use them.

The Consumer Product Safety Commission said Tuesday that its warning applies to 800,000 infant recliner seats, called sleepers, that were sold at stores nationwide and online since September 2009, with prices ranging between $50 and $85.

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The seats, designed for babies up to 25 pounds, feature a soft plastic seat held in a tubular metal rocking frame. The product has a removable fabric cover.

If dark brown, gray or black spots are found during inspection, it can indicate the presence of mold, the CPSC says. If mold is found, consumers should immediately stop using the product and contact Fisher-Price for cleaning instructions or further assistance. Cleaning and care instructions can also be found at www.service.mattel.com