Did the Prophet (peace and blessings be upon him) only sleep between the Adhan of Fajr and the Iqamah?

The Prophet, peace and blessings be upon him, would lie down on his right side after the two light rak'ahs of Fajr, which he would pray after the adhan and before the iqamah for prayer, until the muezzin came to him for the iqamah. It has not been reported that he did this at any other time than Fajr.