<div class="quoteheader"><div class="topslice_quote">Quote</div></div><blockquote class="bbc_standard_quote">LONG REST<br/><br/>A long rest is a period of extended downtime, at least 8 hours long, during which a character sleeps or performs light activity: reading, talking, eating, or standing watch for no more than 2 hours. If the rest is interrupted by a period of strenuous activity—at least 1 hour of walking, fighting, casting spells, or similar adventuring activity—the characters must begin the rest again to gain any benefit from it.<br/><br/>At the end of a long rest, a character regains all lost hit points. The character also regains spent Hit Dice, up to a number of dice equal to half of the character’s total number of them (minimum of one die). For example, if a character has eight Hit Dice, he or she can regain four spent Hit Dice upon finishing a long rest.<br/><br/>A character can’t benefit from more than one long rest in a 24-hour period, and a character must have at least 1 hit point at the start of the rest to gain its benefits.</blockquote><div class="quotefooter"><div class="botslice_quote"></div></div><br/>After a long rest, all spellcasters get their spell slots back.<br/><br/>Also, there's errata that you always get at least one HD back.