So I'm going overseas and want to bring one of those small, summer sleeping bags with me. I live in Australia and at the moment it's winter. I'm having trouble finding any and the only ones I've found were $120 and up to $500. That's a lot! However, there's a store where I bought my backpack that hires sleeping bags. The $500 one is super light(about 300g) and you can rent it for a month for $50. It comes with a liner too that they give you to put in the bag. The shop seems like a proper travel/camping shop and they've always been super helpful and know their stuff. Would hiring a sleeping bag be ok or could there be hygiene risks?