A result about waking to a sound does not necessarily predict waking to another stimulus. A mouse study compared an experimental orexin receptor antagonist, DORA-22, with triazolam and a vehicle control.
The researchers applied auditory, vestibular, olfactory, or low-oxygen stimuli after sleep began. In the sound experiment, the median time to wake was 161 seconds after triazolam, 3.5 seconds after DORA-22, and 3.0 seconds after vehicle. During the low-oxygen test, the groups did not differ significantly in time to wake.
Report the drug, the species, the stimulus and the time measured. The auditory result describes a response under the study conditions. It cannot establish whether a person would wake to an alarm, or whether the drugs would produce the same pattern with another kind of stimulus.
Iwakawa, Kanmura and Kuwaki, Frontiers in Behavioral Neuroscience (2019). Journal article · Full text.