Imaam Ahmed (ra) had a student stay with him and left a bucket full of water in the student’s room. When he returned the next morning the bucket was still full. He was surprised and said, a student that doesn’t have his share of the night!? (meaning the night prayer).
This is because the standards for a student are far higher and he’s supposed to be from the best.
A great scholar from the past said, pray at night even if it’s the length of time it takes to milk a cow.
If one finds it difficult to wake up, pray a short, quick qiyam after your esha so at least you prayed something.