What’s the difference between loungewear and sleepwear?

We will hang out online shopping,when we open a online shop store of home clothing, I find an interesting phenomenon, it is that there are loungewear and sleepwear, I click the product page, I find it is so similar. I feel unsure about difference between loungewear and sleepwear, I guess maybe you will have same hesitation. Now I will analyze difference in some aspect.

Loungewear means casual, comfortable clothing suitable for wearing at home. Sleepwear means pajamas or other clothing suitable for wearing in bed. According to the means you will understand to some extent.

I will provide some image to you,you will clear know the difference.