How to deal with frustration

So my boyfriend and I both have a very high sex drive. Lately he has been sleeping a lot when he gets home from work. And I want to have sex but he is sleeping and I get sexually frustrated I don’t get upset with him because I know his job drains the life out of him. Sometimes he stays up for a little and we kiss and he begins touching me like he does before we have sex and I get excited but then he just passes out and sleeps. How can I deal with this ladies.