Meaning of the word "spring base" in English

What does "spring base" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

spring base

US /ˈsprɪŋ beɪs/
UK /ˈsprɪŋ beɪs/

Noun

a type of bed base that incorporates springs for added comfort and support

Example:
The new mattress came with a matching spring base.
We need to replace the old spring base as it's no longer providing good support.