We have a bunch of fleece sleep sacks. This is our only cotton one (honestly I bought it by mistake thinking it was fleece). But it works out because all of his sleepers are fleece and we keep it a bit warmer during the day (72-73 degeees) than at night (70-71). So this is his afternoon nap time blanket! Both my boys roll around a lot so regular blankets aren't an option. These are the best inventions!