One suggestion I would make is to find a person who is knowledgeable on marijuana and which types suit the purpose you need. If sleep is (close to) 100% of your rationale for its use then there are a huge number of options to choose from for whichever issue you hope the MJ will solve. Looking online you can find the actions each variety are better for, I never found any benefit from varieties that were supposed to help with pain, but discovered sleep was something I did find was available. Do not have any expectations on medical MJ dispensary staff actually being super informed on the products they sell. A study found that when called on the phone, 90% of dispensary staff suggested there was no issue with MJ use and pregnancy, the correct answer is "speak with your MD".
I was lucky, my gym guy grows all his own products and considers me and others he sells to his "patients" , he specializes in folks with medical needs vs just getting high.