Fitbit Premium, Fitbit's exclusive workout membership, is free for 90 days when you sign up to get in shape from the comfort of your own home.

Normally, a Fitbit Premium membership costs $9.99 (£8.99) per month and comes with a one-week free trial. Now, the free trial has been extended to include 12 more weeks of on-demand fitness content, or three months.

If you already own a Fitbit, such as the Fitbit Versa 2 or Fitbit Charge 3, Fitbit Premium offers extensive insight into your health and wellness data. While it features thousands of workout classes, Fitbit Premium is especially useful for a detailed summary of your sleep quality.

The free Fitbit Premium unlocks thousands of workouts available on your wrist or smartphone. You can watch class videos and listen to trainer guides while using the best home gym equipment. There are also plenty of classes that don't require dumbbells or treadmills.

As long as you cancel your Fitbit Premium subscription before the trial period ends, you won't have to pay for these features. (You can always set a reminder on your phone to remind you to cancel.) Watch for Fitbit deals and take advantage of free workouts during this time of year when you spend most of your time indoors.