I am all for having matching pajamas and something cute to lounge around the house in. What I’m not for is overpriced sleep-sets, some of which you have to purchase separately just to replace them in a year because the material is not made to last that long.
With that being said, here is my hack for comfortable and super cute matching pajama sets.
https://amzn.to/2KazNO1 Wearing size medium for reference
https://amzn.to/2wxNKxf Wearing one size up, large, for a less forming fit