My 2 year old, who has never had any sleeping problems before, suddenly woke up last night screaming and clearly terrified. She slept with me and DD after 15 mins of trying to calm her down. This afternoon, she refused to have her nap in her cot, and once again screamed as if she were absolutely terrrified, clinging on to me and DH. Please, does anyone know what is best to do? Should she sleep again with us tonight and hope this passes or do we have to insist she sleeps in her cot?