Riddle

I am a mountain at night, meadow at day. What am I?

Choose an answer

A.A tent
B.A hill
C.A blanket fort
D.Bed
Hint: It's a word with 3 letters, starting with "B".

Answer

Bed

Why this is the answer

This is a loose, poetic fit -- an unmade bed with rumpled covers can look like a 'mountain' at night, while a made bed lies flat like a 'meadow' during the day.

This riddle is filed under "What Am I?" Riddles and rated Hard.