My dd is 7 months old and I will be returning to work part-time in a month. At the moment she falls asleep on the breast, I then transfer her to the cot ( in my room) and she wakes every 2-3 hours for a feed. I know this is a sleep association and can't possibly be hungry every time. Have any other single mums successfully achieved any form of sleep training? I'm worried I won't be strong enough, or give in, or not be consistent . I can't bear hearing her cry, it physically hurts me, but I'm wondering if I NEED to be cruel to be kind?