You'll need achangeofclothesif you'restayingovernight.
I set off onemorningwith somefood, abottleofwater, and achangeofclothesin mybag.
You will need tobringat least twochangesofclothes.
Patients on thiswardare given achangeofclothesdaily.
I alwayskeepachangeofclothesin mylockeratwork.