Sleeping sex

My husband has less of a sex drive than I do. So most of the time when I offer/ ask, he isn’t in the mood.

But for the last few months, he has waken me up in the middle of the night so horny and ready to go. So me (being the absurdly horny person I am) quickly wakes up enough and has sex.

At first it was sexy and hot, but now I’m kind of getting annoyed that he isn’t interested during the day/ when we’re awake, and then he’ll randomly get the urge when he’s asleep.

Has anyone else had this experience with their SO?