Effects of Sensory Overload on Sleep Patterns

After going through an episode of intense sensory overload and then self-soothing (stimming, blocking out lights and noises, etc.) is it normal to feel so drained that you fall asleep for much longer than usual? I was on vacation recently and one day in particular really overloaded my senses. I felt like I was losing my mind because I was surrounded by triggers (big crowds, crying babies, uncomfortable weather, strong smells, cramped spaces). Once I got back to the room I was staying in, I calmed myself down (stim toys, earplugs, sunglasses) and slept for 15 hours. I have insomnia and it's unusual for me to get a full night's sleep. I'm wondering if it's the sensory overload that drained me and made me tired enough to sleep, or if stimming in bed and blocking out my senses is what helped calm me down enough to sleep better than usual (or if there's some other factor I'm not considering at the moment). Just trying to figure this out and hear from anyone else who has had similar experiences, thanks.