I would have been happy at that level. I got my blood work done Total Test was at > 56 and Free was at 13.6.
Now does this do something to you and mess up your sleep? I think so because I have not slept in about 2 years more than 3-4 hours a night if I am lucky. I am 38 years old BTW.
Anyway I started on a test a week ago and the last two nights I got more sleep than I normally do in a week and I feel fantastic.
Normal Total Test levels for our age range is 400-1080 and Free is 47.0 - 244.0 so you can see I was much lower than you but I bet adding even a Test Gel like Andro or Testim 1% would help you if you are not wanting to go into AAS.
Of course I am not a doctor I only play on on TV and this is just my personal opinion.
Good luck and go for it sleep has turned out to be a really neat idea.
Oldman