Sleeper was launched by Kate Zubarieva and Asya Varetsa after one of them had a dream about standing in the middle of a pyjama factory, so it's no surprise that the label's expertise lies in nightwear. The Party set is exemplary of the brand's craftsmanship, with feather trims lending a finish so glamorous that you'll want to wear it outside too – so it's a good job you can.
