Is good listening Ultima Beyond with Quantum Limiteless

I’m current listening Quantum limitless five hours when sleeping.
I’m thinking of buying Ultima Beyond limitless to listening alonh QL.
Is it OK? Or is there any conflict?
Do I have to leave a gap in x hours to listening both of them?

There’s zero problem with listening to both, if anything they’ll only compliment each other.

As for leaving a gap of X amount of hours between listening, that’s a more personal decision. Experiment a little and see what yields the best results for you. Drink lots of water, if you get a headache, fatigue, or some other sign of “mental taxation” then take a break and go focus on taking goal-oriented action