Why Do We Sleep Worse in the Summer?

You Should Know: Summer may feel like a time to rest and recharge, but when days stay lighter for hours longer and sweltering nights make it hard to get comfortable, our sleep often suffers.

Going Deeper: We may sleep less in the summer because of vacations or extra socializing, and bedtimes and wake times get later when days are longer and warmer. The extra summer sunlight affects our circadian rhythm, which regulates the sleep/wake cycle. Darkness and a drop in body temperature helps trigger melatonin production and induce sleep — both of which can be hard to come by in summertime.  

Takeaway: You might need to do a little more in the summer to sleep better. Keep blinds or curtains open to get as much sunlight as possible during the day, and dim the lights an hour or two before bed to signal to your body that it’s time to sleep. Keep your bedroom cool and take a warm bath or shower before bed to help trigger the needed drop in core body temperature. A consistent sleep schedule, even on weekends and on vacation, can also help you sleep more soundly during the summer months. 

Bottom Line: Simple steps you take during the day can improve your sleep on summer nights.