Bedtime. How do I keep my three-year-old daughter from getting up 30 minutes to one hour before the time that she is allowed out of bed in the morning? We have tried lots of things from positive rewards if she stays in bed to negative reinforcement and punishments. She has a clock in her room that changes from blue to yellow when she is allowed to get up and she is fully aware of what she is doing when she gets up before it is yellow and disobeys us. I don't want this to become a daily battle. Any suggestions you have will be greatly appreciated. I have tried putting her in her room for an extended period of time but she just screams and cries and carries on and keeps coming out of her room over and over and over again. She does not have a lock on her door.