I believed that dreaming involved sinking through my mattress and into an ever-changing fantasy world under my bed. This is due to one dream I vividly remembered as a child that began with a 3rd-person perspective of my body falling through my bed and into another world. While awake, I would often search under my bed for this world.
A childhood belief about sleeping

others believed things like this
- Until a few years ago, I believed this was a "doggy dog" world, rather than a "dog-eat-dog" world.— jemima
- I thought the world was black and white because of all the smoke from the bombs in Second World War.— Bjoern
- I uesd to believe that the world was just someones dream and that when they woke up we would all disappear.— tigga
- I used to think that the phrase "It's a dog eat dog world'' was its a dogey dog world.— Gabral
- I used to believe that I was the only person in the world who wanted to be the other sex.— Susan Davis
- I used to believe the oldest person in the world was 214. — Imaginative_Kidd