A Short Rest is 10 minutes.
Characters regain half of all lost hit points (rounded up).
The party may take a Short Rest up to 2 times per day.
This quicker recovery time allows the party to recover without interrupting the overall flow of the story, and allows them to finish most dungeon adventures in a single journey.
A Long Rest is 8 hours and follows the official rules.
Just before going into a dramatic final confrontation, the DM may grant the PCs the benefits of a free Short Rest.
Rests are a great time for players to roleplay their personalities and interactions with each other, to earn an Inspiration roll.