Want to know the secret to celebrity skin and hair? Believe it or not, it's all about the pillowcase. In particular, Slip Silk's Pillowcases.

These luxury pillowcases have been crafted using the finest long-fibre mulberry silk in order to provide your hair and skin with the best sleep of their life – they're the definition of what we call 'beauty sleep'.

The pillowcases significantly absorb less face cream, meaning your night oils and serums can effectively soak into your skin and work their magic. The cases also create 43% less friction than your average case, helping your hair and skin shuffle around the pillow all night long without causing sleep creases and bed head. What is sleep crease, you ask? As your skin rubs against your pillow, it causes friction and enables your skin to lose elasticity. With Slip Silk, your delicate skin is protected throughout the night, resulting in softer, smoother, bouncier skin for longer.

It's seriously no wonder they're loved by the likes of Jen Atkin, Emily Ratajkowski and Rosie Huntington-Whiteley and have won multiple accolades, including Tatler's and Selfridges' Beauty Awards.