I haven't had much luck with this either. Once in a blue moon I get good 2nd day hair, but I can't figure out how to make it consistent.

Even if I wake up with decent 2nd day, in an hour or so it's poof city. Maybe I'll try some of the suggestions in this thread - hope we get more.
2/c and some 3A. Modified CG.
Protein sensitive
Highly porous. Color over grey.
Best 1st day method: Super Soaker
Conditioners: Curl Junkie Beauticurls Strengthening Conditioner,
Deep condish: Curl Junkie Curl Rehab
Stylers: Mix Curls in a Bottle into everything for shine. Terrible pj
Sometimes try roller sets - classic glamor but I prefer my curls.
Every day is a gift