Editions of Sleep smarter

262 pages

English language

Published Dec. 4, 2016

Paperback

Published Jan. 1, 2019 by HAY HOUSE INDIA.

mp3 cd

Published Oct. 25, 2016 by Audible Studios on Brilliance Audio.

6 hrs and 36 mins; narrator Shawn Stevenson

Published by Audible Studios.

6 hrs and 36 mins; narrator Shawn Stevenson

Published by Audible Studios.

296 pages

English language

Published Dec. 4, 2016 by Hay House, Incorporated.