A Cosy PJ Set: Amazon Essentials Cotton Modal Pajama Set The Amazon Essentials Cotton Modal Pajama Set ($25) is a loose-fitting cosy and comfortable long sleeve shirt and full length pant set that will keep you warm all winter long. It comes in a variety of different colours as well like navy blue, black, coral pink, white, and more. Image Source: amazon.com Amazon Essentials Cotton Modal Pajama Set $25 from amazon.com Buy Now