Sleeping Cool this Summer: How to Beat the Heat at Night

For professional drivers, few things are more valuable than a good night’s rest. At Marten Transport, we understand that long days behind the wheel demand real recovery time. But when summer temperatures soar, quality sleep can be hard to come by—especially if your cab feels more like an oven than a bedroom.

Whether you’re running through the Deep South or parked under the sun in the Midwest, your sleeper should be a haven. With the right setup and habits, you can transform your cab into a cool, comfortable retreat—even on the hottest nights. Here's how.

1. Cool Down Your Cab Before Bedtime

Start cooling your truck long before your head hits the pillow. Heat can build up fast in a parked truck, especially if you’re shutting down during peak sun hours. Here are a few strategies to cool things down early:

  • Use reflective window covers: Put up sunshades or reflective windshield covers during the day to keep your cab from baking.
  • Park smart: If possible, aim to park in shaded areas or with your cab facing away from the afternoon sun.
  • Ventilate: Crack your windows slightly if it's safe to do so, or use window vents to let hot air escape while keeping your truck secure.

2. Use Your Marten-Provided APU or HVAC System

Marten knows driver comfort is essential—especially when it comes to sleep. Many trucks are equipped with an APU system that helps regulate cab temperature during rest breaks. These systems allow you to stay cool through the night without idling, saving fuel and helping the environment, too.

Tip: If your system isn’t cooling properly, don’t hesitate to reach out to maintenance. Staying cool isn’t a luxury—it’s a necessity.

3. Choose Bedding That Breathes

Heavy comforters and synthetic sheets trap heat and moisture. Instead, choose bedding that helps regulate your temperature:

  • Opt for moisture-wicking fabrics like bamboo, cotton, or linen.
  • Avoid flannel or fleece, even if you’re used to them—they retain too much heat.
  • Consider a cooling mattress topper or a gel memory foam pillow designed for hot sleepers.
  • Bring an extra pillowcase so you can swap it out mid-week—fresh fabric feels cooler.

Some drivers even chill their pillowcases or sheets in a cooler for a few minutes before bedtime to get that refreshing, cool feeling.

4. Add Fans for Air Circulation

Even with a cooling system, stagnant air can feel suffocating. A small clip-on fan, box fan, or battery-powered fan can make a world of difference. Try:

  • A fan aimed directly at your face or chest while you sleep.
  • A fan placed near a cracked window to push hot air out.
  • A compact USB fan that runs off your truck’s power system without draining your battery.

Some drivers swear by cooling fans with misting options—just be sure it’s safe for use inside your cab.

5. Create a Bedtime Cooling Routine

Getting your body temp down before bed can make it easier to fall and stay asleep:

  • Take a shower before you sleep, especially if you've been sweating throughout the day.
  • No time for a full rinse? Use cool, damp washcloths or cooling body wipes to refresh your face, neck, arms, and feet.
  • Avoid heavy meals or caffeine within a few hours of bedtime—they can raise your internal temp and disrupt sleep.

6. Stay Hydrated—Smartly

Dehydration makes you feel hotter and more fatigued. Drinking enough water throughout the day is key, but be strategic:

  • Hydrate consistently during the day instead of loading up at night.
  • Cut off water intake 1–2 hours before bed to avoid late-night bathroom trips.
  • Keep a cold water bottle nearby in case you wake up feeling overheated.

7. Declutter for Better Airflow

Believe it or not, a cluttered sleeper can hold heat. Clear out unnecessary items from your bunk area and keep your sleeping zone free of gear, clothes, and electronics. The more open space you create, the easier it is for air to circulate and heat to dissipate.

8. Try Natural Cooling Aids

There are a few low-tech tricks that can cool you off in a pinch:

  • Place a damp towel in front of a fan to create a DIY evaporative cooler.
  • Sleep with a cooling gel eye mask or place cold packs near your feet and wrists.
  • Use a spray bottle filled with water and a drop of peppermint oil for a refreshing mist.

Remember, sleep isn’t just about comfort—it’s about safety. Fatigue can slow your reaction time, impact your judgment, and increase the risk of accidents. That’s why Marten Transport invests in the tools and equipment you need to sleep well—no matter the season.

By adjusting your habits and optimizing your sleeper, you can reclaim restful nights, even during the dog days of summer. Stay cool, stay safe, and thank you for everything you do out there on the road.