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Being too hot can disrupt sleep and keep a person from waking up feeling refreshed. If this happens regularly, a cooling mattress may be useful.

Throughout the sleep-wake cycle, the body’s core temperature naturally fluctuates, and during sleep, it typically decreases.

Being too hot can disrupt sleep, including deep sleep, which a person needs to wake up feeling refreshed. Any disruptions may have noticeable effects the next morning.

If this is a persistent issue, a person might take steps to cool down in the bedroom. In this article, we explore some top cooling mattresses and look into other ways to keep the bed, the room, and the body cool.

Please note, however, that the statements below are based only on research. No one at Medical News Today, including the writer, has tried these products.

During a heatwave, or even a regular summer night, getting enough quality sleep may seem impossible, and for those looking to invest, a cooling mattress might help. Some top options might include:

The Saatva Classic

One of 7 of the top cooling mattress options

This is a hybrid mattress that consists of a coil innerspring system and a memory foam top layer.

According to the manufacturer, it contains individually wrapped coils and a cotton cover, reportedly helping to promote airflow. A person can choose their level of firmness.

The company also claims that the product is suitable for people with back and joint pain and for those who sleep in any position.

This mattress is available for purchase online.

The Alexander Signature Hybrid

One of 7 of the top cooling mattress options

According to the manufacturer, the individually wrapped coils and material used help regulate temperature, aiming to keep the body cool.

The company also says that their mattress is suitable for people who sleep on their side, back, or stomach.

This mattress is available for purchase online.

The Zinus 12-inch

One of 7 of the top cooling mattress options

This mattress contains memory foam packed with green tea, a cooling gel, and charcoal.

The manufacturer also claims that the charcoal and green tea in the mattress help eliminate odors.

This mattress is available for purchase online.

The Purple mattress

One of 7 of the top cooling mattress options

According to the company, this mattress is hypoallergenic, and it features a distinctive grid of air channels.

These reportedly promote cool sleep while providing support for the shoulders, hips, and back.

This mattress is available for purchase online.

The Graphite-Infused Memory Foam

One of 7 of the top cooling mattress options

According to the American Mattress Company, the graphite infused in their mattress’ memory foam helps keep the body cool.

They say that the mattress is firm and consists of a 6-inch high-density foam base for support, topped with 2 inches of graphite-infused memory foam.

The manufacturer states that the mattress has an aerated surface to allow heat to disperse.

This mattress is available for purchase online.

The GhostBed Luxe

One of 7 of the top cooling mattress options

This mattress contains gel memory foam, aiming to help relieve pressure and back pain.

The company says that the following features help the body stay cool:

  • ghost ice fabric, which is cool to the touch
  • cooling fiber
  • thermosensitivity technology that senses heat and adjusts to regulate temperature

This mattress is available for purchase online.

The Helix Midnight

One of 7 of the top cooling mattress options

This is suitable for side sleepers.

The company says that the mattress’ breathable cover helps keep the body cool, while the combination of springs and memory foam provide airflow for temperature regulation.

This mattress is available for purchase online.

A person might also try the following strategies, from the American Sleep Apnea Association:

  • Keep the windows closed at night if the inside of the house is cooler than the outside.
  • Use cotton sheets.
  • Take a cooling shower or bath before bed.
  • Avoid alcohol close to bedtime.
  • Try using a frozen, gel-filled eye mask.
  • For a short-term fix, freeze the bedding in a plastic bag during the day.
  • Fill a rubber hot water bottle with cool water, keep it in the freezer, then place it in the bed before going to sleep.
  • Place a pan full of ice in front of a fan to cool the air.

When a person sleeps, the brain cycles through rapid eye movement (REM) and non-REM stages.

Non-REM sleep comes first, and it involves:

  1. a brief transition period into sleep
  2. light sleep, when body temperature drops and breathing, heart rate, and brain waves slow
  3. deep sleep, which a person needs to feel refreshed

Next comes REM sleep, when the eyes move rapidly, though they are shut, and brain waves resemble those of someone who is awake. Breathing increases and the body is temporarily paralyzed.

During an average night’s sleep, the body cycles through these stages a few times, gradually spending more time in REM sleep and less time in non-REM sleep.

Research has confirmed a link between high nighttime temperatures and insufficient sleep. Another study, for example, found that higher temperatures led to reduced sleep quality and duration and made sleep more shallow.

The authors of one 2012 study suggest that high heat prevents the body from cycling through sleep stages smoothly.

A high body temperature can interfere with the progress and flow of sleep cycles, keeping the person from sleeping well and waking up feeling refreshed.

However, there are various strategies and products that may help a person reach the right temperature for sleep.