My suggestion is to think of PJ trousers as you would of jeans, don't get put off by the name and just wear them as you would with any other trouser. Pair with a cool oversize knits, a sweatshirt or a simple basic T-shirt and throw in a fancy heel to galm the whole thing up. Zara, Oasis and Warehouse all have great inexpensive styles in at the moment so no need to spend a fortune on Stella McCartney! Just a tip: choose silky, loose styles with a drawastring waistline for a super relaxed look.
Cos jumper, Zara trousers, Jimmy Choo shoes
Stella McCartney SS12