What does Ad d’lo yodah have to do with Pesach. The mitzvah of Pesach is zechira which clearly requires the Seder participant to be awake and cogent. The daled cosos, as every one knows, are keneged the four lashonos of geulah and are part of the the zechira. Those individuals who cannot drink four reviis size servings of normal wine over the course of a several hour period without nodding off have a couple of eitzehs:
1. Low alcohol content wine. Normal wine is 12-13% alcohol. Low alcohol wine, very much like “new wine” which was drunk in antiquity, is about 5% alcohol and modern pasteurized grape juice has, of course no alcohol. Note that many poskim hold that using grape juice is a b’dieved at best.
2. While the largest shiur of reviis that I know of is 5.3 fl oz per the Chazon Ish (N.B. 5 oz is a normal serving of wine in the U.S.) there are recognized poskim who hold that s reviis is considerably smaller. One man d’amar, I forget who, holds that a reviis is only 3 fl oz. While it is, of course, preferable to be yotzei all shitos, it might be wise to use a smaller reviis in order to stay awake and and be mekiyaim the main mitzvah of the seder, zechira.