I purchased the 6-9 month size for my 15 pound three month old. I have found all of the Gerber products to be cut on the small side. The cotton is basic - not too soft but sturdy and easy to wash and wear. These sleepers keep him warm with his SleepSack on over them. The pattern is cute and the colors are true to the picture shown. I would recommend this product due to the price and practicality of footie sleepers.
The Gerber brand is a great brand. These sleepers/pjs are wonderful. They are made to last and in my experience can be handed down from one child to another. Not only are they perfect for sleeping in, but also for around the house playing. They are cozy, warm, and comfortable, and they last a long time, wash and dry easily, so in my opinion they are the perfect pjs! These are perfect when it's not too cold at night, but not warm either.