I don't know how old you are, or what your sleep is like. You may get better luck asking on reddit.

We work in neurotech/sleeptech, and there is significant research into slow-wave enhancement via auditory stimulation on memory and cognitive function.

Meta-analysis - https://doi.org/10.3389/frsle.2023.1082253 Cognitive decline - https://doi.org/10.1111/jsr.13818

I link to more research on our website https://affectablesleep.com if you're interested. Happy to answer questions.