If you're hunting for where to stream 'The Sleep Experiment', there are a few routes I’ve used and seen pop up depending on the region. After its festival run it hit VOD fairly quickly, so the most reliable places to check are rental storefronts like Amazon Prime Video (storefront rental/purchase), Apple TV/iTunes, Google Play/YouTube Movies, and Vudu. Those give you instant access if you want to watch tonight without waiting for a platform to pick it up.
For subscription options, the film tends to bounce between genre-focused services and bigger platforms. In the U.S. and parts of Europe I’ve seen it show up on Shudder for a while, and occasionally on Peacock or
Hulu as part of their horror rotations. If you prefer free-with-ads viewing, keep an eye on
Tubi and
Pluto TV — they sometimes add it a few months after the paid windows. Availability shifts fast, so if it’s not on your local streaming service now, it might appear there in a few weeks.
If you want the simplest trick: check an aggregator like JustWatch to see which platform currently carries 'The Sleep Experiment' in your country, or search the rental storefronts directly. I grabbed it on a late-night rental once and it was worth every penny — creepy, taut, and stays with you for a bit after the credits.