About restoring data from LIFECYCLE storage class
At the time of restoring, if your data exists in STANDARD or STANDARD_IA storage class, the data is restored to the destination location. However, if the data resides in GLACIER storage class, the data is first retrieved at an internal staging location maintained by Amazon. The data is then restored to the destination location. Hence, the time taken to restore data from STANDARD or STANDARD_IA storage class is much less than the time taken to restore data from GLACIER storage class.