Sitemap If a room is too hot or too cold, you will probably end up having trouble sleeping. Being very sweaty or freezing cold is not a good recipe for satisfying rest. The temperature of your bedroom should be above 54 degrees Fahrenheit, but it should be below 75 degrees Fahrenheit. The ideal temperature depends on your preferences, so you should try multiple temperatures between the range of 54 degrees and 75 degrees until you find the temperature that works for you.