no!!! - they will go a funny shape and will be useless afterwards... water is not the same salt ratio as solution, and they will not be wearable the next day

saline is ok, and if really really desperate you could try mising a tiny bit of salt in the water but there is a big risk of ruining them with that as you need to get it at exactly 0.9% to get the right salt content to not ruin them.