How much more efficacious is suvorexant than ambien or lunesta (eszopiclone)?

Unknown: As far as i know, suvorexant is not yet on the market in the us.

Hard to say: If sleep is a pbm the 1st thing to do is work on getting on a regular slee-p cycle, same wake and sleep times, dark, quiet, comfortable and coolish environment , avoid bright light 1 hr prior to be ( surpresses your melatonin -which helps you fall asleep) and supplement with 4-500mg of magnesium gluconate or citrate