Sex sleep walking?

Okay so my husband works nights and when he comes home im often still asleep. He usually comes snuggle or rubs my back. But it seems it ends in sex i initationed while fully asleep and will wake up halfway through. My husbands the most respectful man I've been with so no he doesn't try stuff when i sleep he honestly assumed i was awake. This has happened a few times. Is something wrong with me?