Now enable Amazon EC2 Hibernation for On-Demand and Reserved Instances through AWS CloudFormation
You can now enable Amazon EC2 Hibernation for On-Demand and Reserved Instances through AWS CloudFormation, a service that allows you to easily provision and update a collection of AWS resources in an orderly and predictable fashion. Launching EC2 instances with Hibernation enabled has become easier than ever as now you just need to add a single “HibernationOptions” property with “Configured: true” parameter within the AWS::EC2::Instance resource in your CloudFormation template. With this new feature, you can easily make Hibernation a part of your EC2 instance setup through CloudFormation, provided your EC2 instance meets the Hibernation Prerequisites.
Source:: Amazon AWS