Why do I sleep? /
Angela Royston.
- Collingwood, Ont. : Saunders Book Company, c2011.
- 24 p. : col. ill. ; 24 cm.
- My Body. .
Includes index.
Why do you sleep? -- What happens when you sleep? -- Dreams -- A good night's sleep -- Getting ready for bed -- Waking up at night -- Too little sleep -- Sleeping during the day -- Resting and relaxing.