Hammock

[Britney]

A swinging couch or bed, usually made of netting or canvas
about six feet wide, suspended by clews or cords at the ends.

[Julene]

A bed made of canvas or rope mesh suspended from two supports by cords at both ends.

[Donald Trump]

a type of bed used especially outside, consisting of a net or long piece of strong cloth that you tie between two trees or poles so that it swings (= moves sideways through the air)