The Effects of Presleep Activity on All‐Night Sleep

Abstract

ABSTRACT The effects of different presleep activities on all‐night sleep were assessed. Nine young adult males engaged in brief periods of progressive relaxation (Relaxation), light dynamic exercise (Exercise), or a boring monotonous vigilance task (Vigilance) immediately before bed on consecutive nights. Standard electrophysiological data were recorded during the 7.5 hrs of sleep. The latency of sleep onset was shortest after Relaxation and longest after Exercise. Presleep heart rate and electromyograph levels were not related to sleep onset. Sleep stages were not differentiated by condition and no sleep parameter differed from normative data. The results suggest that it is possible to alter sleep latency by manipulating presleep behavior without disrupting the normal steep pattern.

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