Amazon

$21.99

This sleep therapy machine from HoMedics is battery-operated and portable, which makes it perfect for traveling during the holidays. It’s small enough to fit in your carry-on and even inside a purse. You can choose from six natural calming sounds, including white noise, rain, thunder, ocean, summer night, and brook.

You can set a timer for 15, 30, or 60 minutes to help block outside noise temporarily, or play continuously to stay asleep through the night. “I suffer from insomnia and this has made an incredible difference in the amount of time it takes me to fall asleep,” one reviewer noted. “I also don’t wake up as many times during the night.”