All the scrubs are made with a cotton poly blend (NO Iron - that's the poly). I've made a lot of scrubs, both 100% cotton and the cotton poly blend. The cotton ALWAYS has to be ironed after washing and after it's been on for a bit, it looks like you have been sleeping in your scrubs. If your husband is just sleeping in them, then you would be better off with 100% cotton (cooler to sleep in). Remember poly doesn't breath, so if you have a lot of poly in you blend it might get too warm to sleep in.