Cold nights, post-Christmas blues and new year anxieties can make it harder for everyone to fall asleep at this time of year.
Many people turn to music in a bid to help them get to sleep, but not all tracks are equal.
Electrical retailer Currys has created a sleep playlist based on the most picked bedtime tracks by Spotify users.
A Currys spokesman said: "Some people swear by music for sending them to sleep. So, what are the best bedtime beats?
"According to Spotify users, the following songs are some of the most popular for sleeping to, with each of them appearing on sleep-related playlists the most.
"Turns out, the ideal song to sleep to is, on average, 3.7 minutes long and has a BPM of 110.3. It's also best to keep the energy levels down for bedtime, with the songs receiving an average energy score of just 30 out of 100."
According to the research, the best songs to listen to when trying to fall asleep include Heather by Conan Gray, Someone you Loved by Lewis Capaldi and Fix You by Coldplay.
Currys has also put together playlists for romance, workouts, studying, housework and parties.
