At least four class actions have been filed over Fisher-Price Rock ‘n Play sleepers, which were recalled earlier this month following reports of 32 infant deaths.

Mattel Inc., which owns Fisher-Price Inc., announced a voluntary recall April 12 of 4.7 million Rock ‘n Play sleepers, citing risks that infants could suffocate if they rolled from their backs to their stomachs or sides. The recall provides full refunds to consumers who purchased the products as of Oct. 12, at prices that range from $40 to $149, while others would receive vouchers. The lawsuits, the latest of which was filed Tuesday, said the recall is inadequate.