You fill me with a drink and take me with you when you get thirsty. What am I?

I am soft and fluffy, I live on your bed. You rest your tired head on me. What am I? Solve the riddle → I make a 'ding' or a 'clang' sound. I have a clapper inside, but no mouth to speak. What am I? Solve the riddle → What has five fingers but no fingernails? Solve the riddle → I'm round and float high, full of air but completely empty inside. One poke and I'm gone with a sigh. Solve the riddle → What can you open without a key? Solve the riddle →