Sudden unexpected death syndrome (SUDS), sudden unexpected nocturnal death syndrome (SUNDS), sudden adult death syndrome (SADS), or bed death is sudden unexpected death of adolescents and adults, many during sleep.
Sudden unexplained death syndrome was first noted in1977among Hmong refugees in the US. The disease was again noted in Singapore, when a retrospective survey of records showed that 230otherwise healthy Thai men died suddenly of unexplained causes between1982and1990. In the Philippines, where it is referred to in the vernacular as bangungot, SOUNDS effects 43 per 100,000 per year among young Filipinos.
Most of the victims are young males.