when you cannot sleep at night
light sleeper
Parents usually tell this to children at night.
insomnia
drop off
a catnap
medicine you take to sleep
daydream
scary dream or bad dream
to sleep
sleeping tablets
when you imagine or dream, but you are not sleeping
when you cannot sleep because of noise or light around you.
nightmare
lie down
deep sleeper
bedtime story
people usually have this body position to sleep in bed
when you sleep very well, and nothing can make you wake up.
when you sleep for a short time specially in the afternoon