Check to make sure your sheets are 100% cotton, which is more breathable Waterproof protectors can also inhibit breathability and airflow Move your Haven away from the wall or side barriers to prevent airflow restriction Drop the room temperature, change your pajamas, or consider sleeping without pajamas A hot shower before bed can trigger your body to lower your overall temperature Haven's offers the most advanced cooling material in the market; wicking Bamboo, vented latex, infused Copper, and plenty of cooling gel. This isn't a cure to "hot sleepers" but rest assured there isn't a known better alternative