| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Learn to Sleep Well | 978-0-8118-2894-9 (0-8118-2894-8) | 2000 |
| Sleep | 978-0-00-720223-2 (0-00-720223-7) | 2007 |
| The Good Sleep Box | 978-1-85906-239-5 (1-85906-239-3) | 2007 |
Chronicle Books · Connections Book Publishing Ltd · HarperCollins