Have you have ever woken up in the middle of the night covered in sweat and feeling uncomfortably hot? If so, you know the difficulty it can cause to get a good night’s sleep when this happens. To help sleep better, many people have invested in the NASA invented material of memory foam to conform to their body and relieve their pressure points. While this technology has allowed thousands of people to sleep better each night, it does leave some people in certain climates feeling warm.

If you want a cool surface to sleep on, but also one that delivers the same support as memory foam to relieve pain in your back and neck, you are in luck. Now, memory foam mattress manufacturers are designing new ways to keep you cool while you sleep. Before purchasing your next mattress, you must ensure that the brand you are buying offers this.

Here are three tips to consider when shopping for your next mattress.

1. Add ventilation technology.

The first step to a cooler night sleep is eliminating heat transferred from your body onto the bed. This is done through a ventilation system that can take the heat transferred and remove it, keeping the surface of the bed cooler than those without this technology.

2. Put gel foam on top.

Another way to stay cool is to put the gel foam on top. Some manufacturers, such as Serta, who sells the iComfort brand, put the gel foam further away from your body, which can reduce the cooling effect it can have while you sleep. Before you make your purchase, make sure the gel foam is as close to the top of the mattress as possible.

3. Invest in the right material.

A memory foam mattress can be made out of a variety of materials. The material that covers the actual memory foam substance can make a difference in the temperature of the bed as well. Look for one that uses the same material as is used in sportswear. This material naturally works to breathe better with your body’s changing temperature and dissipate moisture so that the surface you are sleeping on is left feeling cool, dry and more comfortable.

If you want the support features of a memory foam mattress without any additional heat, look for these features in your bed purchase. This will allow you to sleep on a cooler surface and be more comfortable overall.