AN UNBIASED VIEW OF TOON ME A RIDDLE

Question: What operates but by no means walks, includes a mattress but by no means sleeps, a mouth that never speaks, along with a head that hardly ever weeps?138. I are available many different colours and I get larger Once i’m entire. I'll float away should you don’t tie me down And that i will make a loud seem if I split. What am I?We use co