Is it correct to say “I slept quite late, but I had sufficient night rest”?

The sentence is mostly clear, but it could be improved for grammatical accuracy and style. Instead of "sufficient night rest," it would be more natural to say "sufficient sleep" or "a good night's rest." A revised version could be: "I slept quite late, but I had enough sleep." or "I slept quite late, but I got a good night's rest."