This is a review from someone who cannot wear polyester (or so I thought). I have never been able to wear polyester clothes bc they felt suffocating and irritated my skin. I was very hesitant to try these items bc they were expensive. Guess what - I even sleep in this dress now lol! It's WAAAY too nice to be a nightgown, but in hot Florida summers it cools me down day and night. It's breathable and beautiful, and it DOES cool you down. I bought a second one too! The only thing I would love to see is floral and other patterns in dresses! Solid colors are okay, but kinda boring, I wish they had colorful fabrics. Otherwise it's excellent!