Sponsoring UK visitor whilst on mat leave

Hi all,

As the title suggest I'm wondering whether I can sponsor my mother in law whilst on mat leave can I still use my payslips as I am still employed??.

We would like her to visit so she can spend time with our eldest and meet the baby. She will then return to her husband and other grand kids.

My Husband is on spouse Visa and currently is employed. We plan to show savings account , property report, mortgage statement.

Can someone plz advise.
??