коледна пижама
https://textile.bg/62-%D1%81%D1%83%D1%82%D0%B8%D0%B5%D0%BD%D0%B8
Are you describing a 'sling' as in a sort of bag or band to lug things, or are you asking about a 'sling' in a clinical context, like an arm sling for supporting a damaged arm?