A large proportion of Autistic people do not sleep well. The figure is sometimes quoted at sixty to eighty percent. Whatever the precise number, the experience is near-universal, and it has been systematically underdiscussed.
The reasons are multiple and overlapping. Sensory thresholds that do not dim at night. Interoceptive differences that make it hard to tell the body when it is tired. Circadian rhythms that often run late, consistently, across the lifespan. Rumination that does not switch off. SPIN thinking that does not yield to bedtime. Sensory-seeking bodies that do not settle without specific input. Sensory-avoiding bodies that cannot tolerate the input the bed provides.
Why the night is loud
The knock-on effects are significant. Poor sleep worsens every other Autistic experience. Sensory thresholds drop. Masking becomes harder. Emotional regulation becomes harder. Executive function degrades. The feedback loop is vicious, and for many of us it runs for decades.
Mainstream sleep advice often does not apply well. Screens off an hour before bed, for many Autistic people, removes the specific sensory and cognitive input that is actually helping us wind down. Light exercise before bed, for many of us, activates the nervous system rather than settles it. Consistent bedtime routines work, when they work, but the routine has to be the Autistic-specific one, not the generic wellness-column one.
Why mainstream advice misses
What tends to help is specific. Weighted blankets. Noise profiles that suit the individual, which might be silence and might be specific audio on loop. Temperature control. Sensory aids like eye masks or specific textures. Melatonin, for some of us. Clear boundaries around the sensory environment of the bedroom. Permission to sleep on a schedule that is not the one the culture insists on.
What tends to help
If you are Autistic and not sleeping well, you are not uniquely broken. The research has known about this for a long time. The support has not kept up. Do not let a sleep clinician who has not been trained in Autistic sleep patterns tell you the problem is behavioural. It is often neurological, and often structural, and the correct response is design of the environment, not willpower.
The night is loud because the day has not stopped. Treating the night is often really treating the day.