My son has always been a good sleeper, going right through from 7 til 7 for the past year, however in the last few weeks he is waking up during the night every few hours. Our second baby is due any day now and I hadn't factored in having to deal with sleepless nights with him as well as our newborn - help!!! Anyone had any experience of this, or any ideas on what we can do to put it right?