WASHINGTON - (AP) -- 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 its warning applies to 800,000 infant recliner seats that were sold at stores nationwide and online since September 2009, with prices ranging between $50 and $85. 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.

Mold can develop between the seat cushion and the hard plastic frame if the sleeper remains wet or is infrequently cleaned.

Fisher-Price has received 600 reports of mold and 16 infants have been treated for respiratory issues, coughs and hives after using the sleepers.