Why am I talking about this? Because I'm known as the guy that eats Cerelac before going to bed. I've learnt it with some portuguese triathlon national team athletes and the habit persisted (it tastes good!).
Just as a curiosity, as the time goes by, the powder was forgotten and nowadays it's only sold in Belgium, Portugal, India, South Africa, Philippines and the Middle East (what is Belgium doing here?)... and is still famous in Portugal with 4 or 5 "white brands" of the same product.
Anyway, there's nothing better than a shot with (per 100g) 419kcal, 15g Proteins, 67g CH, 9g Lipids and 30-140% of the majority of the "important" vitamins before going to bed.