There is evidence that strongly suggests that our sweet taste perception is significantly altered after sleep curtailment.
In a 2019 study, Robin Tucker and colleagues curtailed subjects’ sleep by 33% of their habitual duration. The following day they measured a preference for 45% sweeter foods than measured before the restriction. After said restriction, the subjects were also observed to make more effort during a task for which there was a chocolate reward. This was shown not to be a decrease in sweetness sensitivity but an increased desire for sweetness.