Another example for identifying new interesting parameters is the self-reported sleep length during weekdays and weekend.
After removing parameters that are already included in the current diagnostic criteria our refined model provides high ranked subjective parameters such as the self-reported sleep length during weekend.
Our results of changes in circadian type preferences and increased sleep length during the follow-up in bipolar twins could be consequences of the illness itself, or of treatments used.
Right: quantification of sleep length.
Classical analysis confirms that NT2 patients sleep much longer on the weekends compared to NT1 patients, while their sleep lengths are similar during the week.
Perhaps not surprisingly, however, there was significantly greater variance in cycle length during sleep as compared to urethane anaesthesia (19.3±2.3 s in natural sleep versus 7.2±0.6 s in urethane anaesthesia, n = 8, pair-wise t-test, p = 0.001).
Sleep slow wave activity (SWA) is thought to reflect sleep need, increasing in proportion to the length of prior wakefulness and decreasing during sleep.
The polygraphic sleep parameters were six sleep stages in minutes, sleep latency, REM latency, REM cycle, REM duration, frequency and duration in minutes of awakening during sleep, total sleep time, number of sleep stage shifts, sleep efficiency, number of sleep spindles and density.
Treatment of RLS with increased PLM during sleep (PLMS) has been evaluated in studies limited in size, methodology and study length.
22 When worn during sleep episodes, the ActiSleep monitor can provide estimates of sleep onset, sleep latency, WASO, number and length of awakenings, sleep duration and sleep efficiency.
