Ad libitum and restricted day and night sleep architecture

ABSTRACT

This study represents a first controlled comparison of restricted versus unrestricted sleep in both day and night sleep categories. A repeated measures study of a homogenous group of young women without sleep disorders (n=14) found that stage 1, 2, 3 and REM sleep, as well as sleep latency were not statistically different between day ad libitum sleep (DAL) and day interrupted (DI) sleep categories, while night interrupted (NI) and ad libitum (NAL) sleep showed strikingly different architecture.

KEYWORDS:

• Ad libitum
• day
• night
• nurses
• restricted
• sleep

Notes

¹ Protocols suggested by Dijk et al (2010) were adopted in this study.