Skin expert says one sleeping mistake is giving you wrinkles
![Skin expert says one sleeping mistake is giving you wrinkles](https://i2-prod.walesonline.co.uk/incoming/article29609932.ece/ALTERNATES/s615/0_GettyImages-78652694.jpg)
A medical esthetician has said that when we climb into bed, many of us make the same common mistake - and we need to stop
A medical esthetician has said that when we climb into bed, many of us make the same common mistake - and we need to stop