Excellent. Thanks a lot for your prompt and helpful reply!
I am looking for one or more datasets (preferably from adults) to compare a hypnogram-derived, objective sleep quality metric to subjective sleep quality reported by the subjects.
Searching through all the variables (mostly with the search term "last night") revealed that SHHS2 might be a suitable dataset, in particular the ms204c parameter ("Morning Survey (Sleep Heart Health Study Visit Two (SHHS2)): Quality of sleep: restless/restful"): https://sleepdata.org/datasets/shhs/variables/ms204c
Does anyone have other suggestions which datasets and what subjective sleep scores could be suited for such an analysis?
Of course I am fully aware that there exists no gold-standard sleep score for sleep quality but having one or more datasets with a few different subjective sleep quality metrics about the night related to the hypnogram data might be already a great start for my analysis.
Thanks a lot in advance for your inputs,