Aside from stilnox i'm also taking sertraline for chronic depression. could it be the reason why stilnox does not work for me sometimes?

Suboptimal response: This may suggest that your primary symptoms are sub-optimally responding, meaning you still have significant residual symptoms. Suggest discuss with your psychiatrist to asses any of that and move on accordingly.

Mg deficiency : adding 4-500mg magnesium gluconate or citrate might be helpful-should help both depressiona nd sleep