Suki Waterhouse looks like a ''tramp'' when she's lounging around at home.

The 22-year-old model - who is dating Bradley Cooper - doesn't make an effort to look good when she's hanging out at home and claims she needs help to look ''presentable''.

She explained: ''Well, there's my presentable self and my normal self. I'm the laziest person - that's my normal self. When I'm hanging around my house, I literally look like a tramp. I love being comfortable and having no make-up on. As soon as I get into my house I put on sweats and pyjamas. I love fashion and that's where my presentable self comes in. But I need help - if I didn't have a stylist and make-up artist, I'd look like s**t.''

Suki goes through phases where she switches her look and admits she recently she donned 90s art teacher look with bright colours and patterns, but currently prefers ''biker chic''.

She told LOOK magazine: ''It changes constantly with what I buy and new things I have. I went through a phase about a month ago of dressing like a 90s art teacher, kind of Drew Barrymore.

''I got loads of leather trousers form Burberry so I'm quite into biker chic with flats. I've got Jimmy Choo flats and a thick Mulberry sheepskin jacket. I also just got some wicked new Christopher Kane stuff. I'm quite into crop tops at the moment too.''