I highly recommend this.

The other benefits are-
1- your mind is already very quiet at this hour, at night you are full of thoughts which tire you very easily and force you to sleep
2- you are not tired and sleepy
3- its not dark outside, you are not afraid to go out of the body, night breeds fear
4- there is plenty of time, you are not worried about getting up early for work, you are already up...
5- nature 'favors' this time, its un-natural for you to do something else, when nature has designed you to go to sleep and repair your body and process your memories, there are no such natural requirements during early morning
6- most of us usually eat before going to bed and digestion takes away a lot of energy (thats why system puts you to sleep when you eat more), this is not the case early morning...
7- its easier to 'download' the memories of oobe at this time...