my ds won't sleep in his cot, tried an airflow sleep positioner and wedge. he is a reflux baby on zantac. had maybe 3 short naps in it since we put up about 2 weeks ago. still sleeps in bassinette in our room. any suggestions. my dd slept in it the first night she went in it. he isn't wrapped either, hence why i thought the sleep positioner might make him feel more secure. he is mostly fed to sleep then put down.