The short version: stones people like to keep on the nightstand — amethyst, selenite, rose quartz, smoky quartz, and lepidolite. What each one is, and the calm traditions attached to it. These are objects, not sleep aids or remedies.
Amethyst — purple quartz colored by iron; long the stone people associate with stillness. Shop amethyst
Selenite — a translucent gypsum with a soft satin glow, named for the moon; kept for a sense of light and clarity (used dry — it dissolves in water). Shop selenite
Rose quartz — pink quartz, the gentle heart stone. Shop rose quartz
Smoky quartz — brown-grey quartz, the grounding stone associated with staying settled. Shop smoky quartz
Lepidolite — a soft lilac mica rich in lithium; a quiet, lavender-toned stone. Shop tumbled stones
See them at a Sedona shop.