Figure 6From: Transitions into and out of daylight saving time compromise sleep and the rest-activity cyclesChanges in sleep efficiency (SE) and movement and fragmentation index (FI) in GSS-subgroups/Fall. Before = mean for four days before transition, After 1,2,3 and 4 = means for the days after transition. Not seasonal = GSS-subgroup not seasonal, seasonal = GSS-subgroup seasonal.Back to article page