Sesame Street(Bert) Womens Cotton Sleepwear / Pajama Pants Multicolor 100% Cotton Very high quality womens sleepwear - satisfaction guaranteed! Extremely high quality fabric: 100% cotton; Machine washable. Fabric covered elastic waistband with drawstrings for added comfort. Two hand pockets for storage; Relaxed styling provides a comfortable and casual fit. You will own and wear this exquisite & comfortable nighty for a very long time!