Best Mattress for Hot Sleepers: How to Stop Waking Up Sweaty
If you wake up overheated, your mattress and bedding are usually the cause. Here's what actually keeps you cool at night.
Published 2/1/2025
Why some mattresses sleep hot
Body heat needs somewhere to go. All-foam mattresses, especially memory foam, trap heat because they lack airflow channels and contour closely around your body.
Hybrid mattresses with a coil layer let warm air move through the bed instead of pooling under you, which is why hot sleepers tend to prefer them.
What actually cools you down
Individually wrapped coils for airflow.
Breathable cover fabrics (Tencel, cotton, or knit covers) instead of dense quilted tops.
Active cooling pads or chilled water systems if you run very hot — these can drop sleep-surface temperature by 10-15°F.
Cotton or Tencel sheets — skip polyester, which traps heat against your skin.
Frequently asked questions
- Does cooling gel in foam actually work?
- A little, and only at first. Gel-infused foams feel cool to the touch but warm up within 20-30 minutes once your body heat saturates them. Coils and active cooling systems are far more effective.
- What's the best bed temperature for sleep?
- Most sleep research points to a bedroom temperature of 65-68°F (18-20°C) for the best deep sleep. Cooler than you'd expect — but it's what your body wants.