Yes, it was noticably lower quality than "good normal sleep" (80%?). Better than I got on eszopiclone (60%?) or zolpidem (40%??), worse than trazodone (90+%, but woke up every day like I'd been hit in the head with a frying pan) or temazepam (150%! amazing! but tolerance within a month and then addiction soon after if one is stupid enough to push back on a benzo, so no good).