Mattress (noun)

1. A large pad for supporting the reclining body, used as or on a bed.
2. A pad filled with a soft material and used for sleeping on.

Origin:

Middle english, from old english mætre; akin to old high german matraz mattress, latin matertera foster mother.

Examples:

1. He woke up on a sagging mattress in a rundown apartment.
2. She went to the store to buy a new mattress for her bed.
3. The mattress was filled with feathers for a comfortable sleep.
4. The camping trip was made more comfortable with the use of air mattresses.
5. The mattress was too soft for his liking, he needed a firmer one.