It depends. Is it African or European?
No, not usually.
when bats sleep there wing will grow back.
A parrot will balance on the branch of a tree and tuck its head under its wing to sleep.
A great number of things from dust to spiders
A ladybug is born knowing how to sleep,breath, and swallow
around 4.
Budgies normally sleep on one leg with their head tucked under their wing, standing up!
the length of a swallow is 5 1/2in the width is 14 1/2in
No the sleep like this they sit down and tuck there face in their back under one wing they sleep on land and water
Most people do; some people dribble on the pillow
sip