My husbands ultimatum

My husband told me yesterday he is NOT ok with me not letting him stay out all night once in a while. He said he has few best friends and he bonds better at 3am after a few drinks and some jam sessions in his music studio. He does go to his music studio and it’s a safe place. All night means he’s return at 10am the next day because he’s pass out at the studio. We have a little baby at home. Him doing this gives me so much anxiety but should I let him? He did agree to hire help with the baby the nights he goes out so I can go out or relax and get some sleep. That parts sounds tempting but I’m having a hard time with this