Overwatered Snake Plant. Like REEAAALLLYY over loved it. Temperatures lower then 50F can cause cold stress and result in a dying snake plant.
Remove the dirt after pulling out the plant from the pot. Snake plants also called mother-in-laws tongue are slow-growing drought-tolerant plants that can thrive in almost any condition but over watering. This article goes into more detail about Saving Overwatered Snake Plant and explains some of the best ways to revive the plant and avoid the watering mistakes.
If we neglect a bit then the snake plant might be overwatered.
Overwatering is a common reason to cause rotting roots in snake plants. Look for the symptoms of root rot. Like REEAAALLLYY over loved it. When the leaves of your snake plant become mushy and start to fall over it is a clear sign of overwatering.