How many is a few hours?
What does it mean by few hours?
How many hours is several hours?
Does several hours mean 7 hours?
How long is a few minutes?
How long is a few days?
Is three hours a long time?
Is there a difference between few and several?
How many is several days?
Is 1 hour of sleep enough?
Is 4 hours of sleep enough for one day?
Is 4 hours a long trip?
Is it OK to not sleep one night?
Is 6 hours of sleep enough for a teenager?
Is 2 hours of sleep better than none?
Why do we dream?
One widely held theory about the purpose of dreams is that they help you store important memories and things you’ve learned, get rid of unimportant memories, and sort through complicated thoughts and feelings. Research shows that sleep helps store memories.