Covid has affected us in many ways and sleep is no exception indeed. I think relying on both tests you mentioned would help, although it could take a bunch of your time. You never know which one would suit your academical needs best. I feel you on this one. Life is all about making choices but we rarely have enough time for that. When I was your age I was thinking of applying for a job I wanted but I needed to have a great CV for that. I was torn between two choices – either write one myself or trust professionals. Fortunately, I relied on one of the top resume writing services and after reading a monster resume writing service review I made my decision and put my trust in them. Best of luck with your research and your adult life!