P J Hauri1. 1. Mayo Sleep Disorders Center, Rochester, MN 55905, USA. Hauri.Peter@mayo.edu
Abstract
STUDY OBJECTIVE: To evaluate the performance of a sleep switch device (held between finger and thumb) in normal sleepers and in insomniacs by comparing its performance to PSG data, wrist actigraphy, and subjective estimates. DESIGN: 19 insomniacs and 6 normal sleepers each spent one night in the sleep laboratory. Sleep latency and total sleep time were evaluated by the sleep switch device, polysomnography, wrist actigraphy, and subjective estimates. SETTING: NA. PATIENTS OR PARTICIPANTS: NA. INTERVENTIONS: NA. RESULTS: The sleep switch device correlated .98 with PSG sleep latency (to the onset of the first 10 minutes of solid sleep, stage 1 or deeper). Mean and standard deviations were almost identical between the two measures. The sleep switch was somewhat less accurate than the wrist actigraph in assessing total sleep time. CONCLUSIONS: The sleep switch device is a very accurate and inexpensive tool when trying to assess sleep latency in insomniacs and in normals.
STUDY OBJECTIVE: To evaluate the performance of a sleep switch device (held between finger and thumb) in normal sleepers and in insomniacs by comparing its performance to PSG data, wrist actigraphy, and subjective estimates. DESIGN: 19 insomniacs and 6 normal sleepers each spent one night in the sleep laboratory. Sleep latency and total sleep time were evaluated by the sleep switch device, polysomnography, wrist actigraphy, and subjective estimates. SETTING: NA. PATIENTS OR PARTICIPANTS: NA. INTERVENTIONS: NA. RESULTS: The sleep switch device correlated .98 with PSG sleep latency (to the onset of the first 10 minutes of solid sleep, stage 1 or deeper). Mean and standard deviations were almost identical between the two measures. The sleep switch was somewhat less accurate than the wrist actigraph in assessing total sleep time. CONCLUSIONS: The sleep switch device is a very accurate and inexpensive tool when trying to assess sleep latency in insomniacs and in normals.
Authors: Saad M Alsaadi; James H McAuley; Julia M Hush; Delwyn J Bartlett; Zoe M McKeough; Ronald R Grunstein; George C Dungan; Chris G Maher Journal: PLoS One Date: 2014-04-24 Impact factor: 3.240