Correspondence with Sri Aurobindo
The Complete Set
I have read in the Mother's “Conversations” that if one prays to her before going to bed to be conscious in sleep, it helps.
You have to start by concentrating before your sleep, always with a specific will or aspiration. The will or aspiration may take time to reach the subconscient, but if it is sincere, strong and steady, it does reach after a time – so that an automatic consciousness and will are established in the sleep itself which will do what is necessary.