I consider myself bound by the same confidentiality as the Healers from St Mungo's.

If we had a proper Matron, I'd have told her about it and let her handle talking to you. But, if we had a proper Matron, she'd have been paying attention to how often you were taking it. Since right now it's never the same Healer twice, there's not much point. I could leave a note telling them not to give you any more Dreamless Sleep, but I thought I'd try talking to you about it, first.