e/Mattress protector

Information
has gloss	eng: A mattress protector, mattress topper, mattress pad, or underpad is an item of removable bedding that sits on top of or encases a mattress to provide protection to the mattress. Some mattress protectors also provide protection to the individual sleeping on the mattress from allergens and irritants such as dust mites, bed bugs, mold, and dead skin (like dandruff).
lexicalization	eng: mattress protector
instance of	(noun) a large thick pad filled with resilient material and often incorporating coiled springs, used as a bed or part of a bed mattress

Meaning
Japanese
lexicalization	jpn: 敷き布団