Attentive A5E

Always aware of your surroundings, you gain the following benefits:

When rolling initiative you gain a +5 bonus.
You can only be surprised if you are unconscious. A creature attacking you does not gain advantage from being hidden from you or unseen by you.

Source: Adventurer's Guide (EN Publishing) · License: Creative Commons Attribution 4.0 / OPEN GAME LICENSE Version 1.0a details