Monitoring sleep with a smartphone accelerometer
Version of Record online: 25 JUL 2012
© 2012 The Authors. Sleep and Biological Rhythms © 2012 Japanese Society of Sleep Research
Sleep and Biological Rhythms
Volume 10, Issue 4, pages 287–292, October 2012
How to Cite
NATALE, V., DREJAK, M., ERBACCI, A., TONETTI, L., FABBRI, M. and MARTONI, M. (2012), Monitoring sleep with a smartphone accelerometer. Sleep and Biological Rhythms, 10: 287–292. doi: 10.1111/j.1479-8425.2012.00575.x
- Issue online: 2 OCT 2012
- Version of Record online: 25 JUL 2012
- Accepted 26 May 2012.
The present pilot study aimed to compare sleep estimation with a smartphone accelerometer to that of an actigraph accelerometer in healthy adults. Thirteen volunteers (four females; mean age 22.97 ± 3.44) simultaneously wore Actiwatch actigraphs and put the smartphone close to the pillow for at least four consecutive overnight recordings. On the whole, the agreement between the two devices was reasonably satisfactory for all sleep parameters considered (Total Sleep Time, Wake After Sleep Onset and Sleep Efficiency) but not for Sleep Onset Latency. To deeply understand the suitability of the smartphone in assessing sleep, future studies should necessarily use polysomnography.