Was it real? A voice during the night said 'Ask for anything'... but I missed Tahajjud and went back to sleep

Lately my iman has been really down, and before sleeping I was crying so much. Then suddenly I woke up at night-not sure if it was Tahajjud time or what-and I felt this voice saying, 'Ask for anything.' But I was so tired, I didn't get up to pray and just slept again. Now I feel terrible. I keep thinking, was that a delusion or something real? I truly felt it, you know. I wish I had made dua or prayed, but I couldn't even move. May Allah forgive me and not let me miss such a blessing again.