Beloved of death

The negative energy of death has seeped into your very soul and redefined you at every level of your being. Your undead bonds have grown stronger with your new found kinship with them. Death magic has corrupted your physical form and you have forsaken the living 

• You don’t need to eat, drink, or breathe.
• You are immune to disease.
• You don’t need to sleep, and magic can’t put you to sleep.
• You no longer suffer penalties of exhaustion but 5 levels will cause you to become immobile for a full 24 hours
• You gain the spare the dying cantrip and if you already knew it the distance doubles, however the target takes one level of exhaustion
• Undead of INT of 8 or less see you as undead and are not hostile towards you unless attacked directly 

Undead's Watch. When you take a long rest, you must spend at least six hours in an inactive, motionless state, rather than sleeping. In this state, you appear inert, but it doesn’t render you unconscious  and you can see and hear as normal.