Sleep on a bed to gain +1 resource. Red Bed: +1 heart Green Bed: +1 stamina Stamina takes 3 seconds to start recovery (stamina recovery speed) and 0.5 seconds to regenerate per point (stamina regeneration speed). Blue Bed: +1 Mana Mana grants stats to your mana-drainingweapons. By default each point of mana✯ grants 10% more damage..