Temp hit points still count as damage and you take concentration checks when you take damage.
Does losing temp HP break concentration?
Temp hp, is a mechanism that deals with hit-point-loss; and thus doesn’t effect the DC of concentration checks. If a creature or an object has resistance to a damage type, damage of that type is halved against it.
Can I stack temporary hit points?
As mentioned above, temporary hit points do not stack, regardless of the source. Heroism, that grants you a few temporary hit points each turn, effectively “resets” them if they’re gone – it’s practically preventing a small amount of damage each turn.
What does it mean when you have temporary hit points?
Temporary hit points aren’t actual hit points; they are a buffer against damage, a pool of hit points that protect you from injury. When you have temporary hit points and take damage, the temporary hit points are lost first, and any leftover damage carries over to your normal hit points.
What happens when you get 0 hit points?
If you have 0 hit points, receiving temporary hit points doesn’t restore you to consciousness or stabilize you. They can still absorb damage directed at you while you’re in that state, but only true healing can save you. Unless a feature that grants you temporary hit points has a duration, they last until they’re depleted or you finish a long rest.
How many hit points can you recover after taking damage?
After taking damage, you can recover hit points through natural healing or through magical healing. In any case, you can’t regain hit points past your full normal hit point total. With a full night’s rest (8 hours of sleep or more), you recover 1 hit point per character level.
Do you have to do a concentration check when you lose a hit point?
No, concentration checks trigger on taking damage, but temporary hit points are a buffer against damage. Temporary hit points aren’t actual hit points; they are a buffer against damage, a pool of hit points that protect you from injury. Losing temporary hit points does not mean you take damage.
