I miss having sex with my husband

We are not having sex hardly at all anymore. I had our baby five months ago but she sleeps through the night so that’s not our problem. Its that once she goes to bed and we eat, clean up, and finally get to relax it’s already 9 and my husband is so tired and wants to go to bed. He wont stay up any longer to have sex. Always says its cause he has to wake up at 4 but also i just want our sex life to be important to him some nights too. Im not talking every night obviously but a few times a week! Anyone have any advice? Ive tried talking to him but then he just gets defensive that he works all day and just wants to relax the rest of the night