Touched by Death

You have known the kiss of death, but it just didn't take to you. Though you still live, your physical body has been forever changed by the experience:

• Increase your Constitution score by 1, to a maximum of 20.
• You have advantage on death saving throws.
• You don't need to eat, drink, or breathe.
• You don't need to sleep, and magic can't put you to sleep. You can finish a long rest in 4 hours if you spend those hours in an inactive, motionless state, during which you retain consciousness.