The Longevity Habit Most Guys Ignore Starts in the Bedroom

A growing number of sleep experts are pointing to bedroom temperature as an overlooked factor in recovery and healthy aging. Research has linked excessive nighttime heat to poorer sleep quality, prompting increased interest in temperature-regulating sleep systems designed to support deeper sleep and overnight recovery.

According to sleep and airway expert Jay Khorsandi, DDS, the body relies on a natural drop in core temperature to initiate deep sleep. A cooler environment helps support that process, allowing you to spend more time in slow-wave sleep, the stage where much of the body's repair and recovery takes place.

Christopher Winter, MD, a board-certified neurologist and sleep medicine specialist, says the body typically needs to lower its core temperature by about one to two degrees Fahrenheit to enter deep sleep. After 40, that cooling process becomes less efficient, making environmental temperature even more important.

The Surprising Reason You Wake Up Hot at Night

If you've ever jolted awake in the middle of the night feeling overheated, you're not alone. Winter says the second half of the night is dominated by REM sleep, a stage during which the body loses much of its ability to regulate temperature. If your bedroom is too warm, your body may wake you up to escape the heat.

Khorsandi notes that overheating can lead to fragmented sleep, more awakenings, and the frustrating feeling of getting a full night's sleep but still feeling exhausted the next day.

Related: This Simple At-Home Routine Could Help You Stay Strong, Recover Faster, and Live Longer

Why Sleep Experts Are Paying More Attention to Bed Temperature

Many people focus on supplements, training plans, and wearable recovery scores while overlooking the sleep environment itself.

"Recovery does not happen in the gym. It happens during sleep," says Khorsandi. Temperature-disrupted sleep can negatively affect deep sleep, muscle repair, glucose regulation, mood, focus, and next-day energy.

Winter calls sleep temperature "foundational" because sleep is where growth hormone release, muscle repair, glucose regulation, and cortisol recovery occur. In other words, temperature isn't competing with your nutrition or training plan-it's helping determine how well those strategies work.

Why More Couples Are Turning to Dual-Zone Sleep Systems

For couples, the challenge can be even greater. Both experts point out that people have different temperature preferences, making dual-zone cooling systems an increasingly popular solution for reducing nighttime disruptions.

Winter says many couples operate in different "thermoneutral zones"-the temperature range where the body doesn't have to work to stay comfortable. Once that thermal mismatch is eliminated, many of the secondary disruptions, including tossing, turning, and stealing the covers, often disappear.

Forget turning your bed into a freezer. Winter says most adults sleep best in a room around 65 to 68 degrees, with a sleep surface that's cool enough to help the body relax and stay asleep.

How to Upgrade Your Sleep Setup

Want to put these expert recommendations into practice? Start with the environment you're spending a third of your life in.

• Start with the mattress: The Malouf Polaris Hybrid Mattress pairs cooling technology with a hybrid coil-and-foam design to help reduce heat buildup while supporting your shoulders, hips, and back throughout the night.
• Dial in your position:BedJet's PowerLayer is an ultra-thin adjustable bed base that slips beneath your existing mattress, allowing you to elevate your head or feet for comfort, recovery, reading, or sleep without replacing your current bed.
• End the thermostat battle: One person likes the bedroom cool. The other likes it warm. Someone usually ends up uncomfortable. The BedJet 3 Dual Zone Climate Comfort System lets each sleeper choose their own bed temperature by blowing warm or cool air beneath the covers, helping reduce nighttime wakeups.
• Sleep cooler all night: Maintain a more consistent sleep temperature helps you sleep deeper. The Chilipad 2.0 is a temperature-controlled mattress topper that circulates water through thin channels to cool or warm your bed throughout the night.
• Support Your Head and Neck: The Pluto Pillow is customized to your body type and sleep preferences, helping improve comfort and alignment.

Bottom line: You can optimize your workouts, nutrition, and supplements, but none of them matter much if you're not sleeping well. A cooler sleep environment may be one of the simplest ways to support better recovery and long-term health.

Related: Foot Surgeon Says This Common Post-Workout Habit Could Be Sabotaging Recovery After 40

This story was originally published by Men's Journal on Jun 3, 2026, where it first appeared in the Health & Fitness section. Add Men's Journal as a Preferred Source by clicking here.

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This story was originally published June 3, 2026 at 3:16 PM.