The excessive sleepiness appears when the individual has to be productive, awake and alert. Both symptoms are predominant in SWSD. There are numerous shift work schedules, and they may be permanent, intermittent, or rotating; consequently, the manifestations of SWSD are quite variable.

Shift work sleep disorder (SWSD)

Shift work sleep disorder (SWSD) occurs in individuals who work nontraditional hours like split shift, graveyard shifts, early morning shifts, or rotating shifts. It’s characterized by excessive sleepiness, lack of refreshing sleep, and drowsiness. These symptoms can affect both work and leisure time

How does shift work affect sleep?

Shift work that includes the night will have pronounced negative effects on sleep, sleepiness, performance and accident risk. Misalignment between internal circadian physiology and the required work schedule is thought to be a primary cause of shift work schedule induced sleepiness and sleep disruption

Suggested Insurance Conversion Table for NAICS Code 339112, 334510,339115.

Looking for an insurance classification other than the North American Industry Classification System? If a company falls within the industry defined on this page, then the class codes mentioned below may be applicable. Please note that the bulleted cross-reference guide below is not authoritative. Users should have an insurance professional review to ensure proper insurance classification.

NCCI WC (Varies by state): 3685

CA WC: 3682
DE WC: 0487
PA WC: 487
MI WC: 3685
NJ WC: 3685
NY WC: 3685
WY WC: 339112
NAICS: 339112
GL: 56807
SIC: 3841