I haven't got one, but you asked for another option - we got DD to stay in bed by asking her "When do you get up in the morning?" and she'll reply with "When the sun comes up." We talked about the light coming into her room from the window and would give her masses of praise when she stayed in bed. Did that for about a week and now she doesn't get up until around 6.30-7 and then she'll climb into bed with us, often for another hour. Just another idea