If you need to keep them long, I wouldn't keep them in plastic bags. Don't worry at all about the iris. I left a bunch on a table in my back yard in full sun 1 spring when I was dividing, they starting growing the following spring. I usually let iris dry a bit before replanting anyway a week or 2. Left in plastic bags though bulbs will be prone to rot.

Thanks, I'll take them out of the bags. We already planted a few without drying them out but hopefully they will return next year.