innerspring

1 3.9

A mattress with metal springs inside that supports your body

noun
/ˈɪnərˌsprɪŋ/

: colchón de muelles

And it's with good reason, because the waterbed is the greatest thing to happen to sleep since the invention of the innerspring."
innerspring mattress
queen-size innerspring

Examples

She chose the innerspring mattress because it offers both comfort and durability.
Let me introduce you to the greatest invention in sleeping since the innerspring.

Licorice Pizza (2021)
A conventional innerspring mattress provides excellent support for a good night's sleep.
Most hotels prefer innerspring mattresses for their balance of firmness and comfort.

Synonyms

mattress

vsinnerspring

248 1.0

A thick, soft pad put on a bed for sleeping

is the specific one with a metal spring core rather than other fillings

spring mattress

vsinnerspring

1 2.0

A bed surface filled with metal springs that supports your body while you sleep

means the same construction but uses a different common name

How Supportive

innerspring

1 3.9

foam

99 2.6

air mattress

11 2.0

Surface Forms

innerspring singular

innersprings plural

Morphology

innerspring = inner + spring (transparent) = inner + spring

The compound clearly denotes a spring located on the inside (i.e., a mattress with internal springs), which a B1 learner can infer from 'inner' + 'spring'.

Etymology

Innerspring is made from inner ('inside') and spring (the metal coil you find in a pen or a toy). It names a mattress with springs inside that give it support and a little bounce.