mattress

As an adjective nonfitted

is not fitted.

As a noun mattress is

a pad on which a person can recline and sleep, usually having an inner section of coiled springs covered with foam or other cushioning material then enclosed with cloth fabric.

As nouns the difference between mattress and size

is that mattress is a pad on which a person can recline and sleep, usually having an inner section of coiled springs covered with foam or other cushioning material then enclosed with cloth fabric while size is subject, topic.

As nouns the difference between trundle and mattress

is that trundle is a low bed on wheels that can be rolled underneath another bed while mattress is a pad on which a person can recline and sleep, usually having an inner section of coiled springs covered with foam or other cushioning material then enclosed with cloth fabric.

As a verb trundle

is to wheel or roll, especially by pushing.

As a verb elevate

is to raise (something) to a higher position; to lift.

As an adjective elevate

is (obsolete) elevated; raised aloft.

As a noun mattress is

a pad on which a person can recline and sleep, usually having an inner section of coiled springs covered with foam or other cushioning material then enclosed with cloth fabric.

As a noun mattress

is a pad on which a person can recline and sleep, usually having an inner section of coiled springs covered with foam or other cushioning material then enclosed with cloth fabric.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between avocado and mattress

is that avocado is avocado (fruit) while mattress is a pad on which a person can recline and sleep, usually having an inner section of coiled springs covered with foam or other cushioning material then enclosed with cloth fabric.

As nouns the difference between mattress and shakedown

is that mattress is a pad on which a person can recline and sleep, usually having an inner section of coiled springs covered with foam or other cushioning material then enclosed with cloth fabric while shakedown is (slang) extortion, especially through blackmail.

As an adjective shakedown is

that tests the performance of a ship or aircraft.