Sunrise presenter Samantha Armytage says sleep a key reason behind weight loss IF you're struggling to lose weight, Samantha Armytage has some advice: stay in bed. The Sunrise presenter says getting a good night's sleep has been her secret weapon in dropping two dress sizes. "My doctor worries about the time I get up and she says if I feel tired she'd rather I had a nap than go to the gym," Armytage told Woman's Day. She says I'd lose more weight sleeping than working out ... sleep is number one for me and then exercise. Samantha Armytage says she's dropped about 12kg since following her doctor's orders. Armytage said her Chinese medicine practitioner emphasised a consistent sleeping pattern due to her 3.40am wake-up call for her breakfast TV duties. "My priority has been to get a really decent seven or eight hours' sleep a night," she said. Armytage, 37, said she was "probably a bit more curvy" when she appeared on Dancing With The Stars in 2011. I was a bit heavier than I am now. I don't know how much heavier, probably 10 to 12kg," she told Woman's Day. I'm not sure why it became such a big thing. She has also given up alcohol on weeknights and cut coffee from her diet. "There's no miracle cure, but if I eat well and do a bit of exercise and get decent sleep and have some fun, I can drop a couple of kilos in a week," Armytage said.