Currently, the getBedLocation method on Player will throw an IllegalStateException if the player is not currently sleeping in a bed. This behavior seems strange to me because the bed location is accessible even when the player is not sleeping.

For example, the getBedSpawnLocation method will successfully return a spawn location based on the Player's bed location. 

The reason for this behavior is probably because a HumanEntity doesn't track a bed location, which means calling it on one that is not sleeping doesn't work. I think a better solution for this may be to return null if a HumanEntity isn't sleeping and to return the bed location if a Player isn't sleeping.