Fixed Lua errors when a sleeping player takes damage
Fixed /sleep falsely being reported as disabled when you use /sleep while dead.
Fixed antispam /sleep notification not showing.
Made the /sleep antispam notification more descriptive.
Fixed an issue where a sleeping player can respawn, after being killed, with less than 100 health.
Fixed being able to bypass being frozen with /sleep.
Made the notification that appears when you use /sleep while dead more descriptive.
Merge pull request #1039 from Bo98/sleep-fixes

Sleep fixes