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TL;DR: Uber-comfortable Purple mattresses come with free sheets and a sleep mask, giving you a value of up to $158 for free.

You likely already have all your New Year's resolutions squared away, but if getting better sleep isn't on your list, it should be. A vital player in how you sleep is your mattress — if you're sleeping on a rock hard, creaky mattress that you've had for 10 years, it's time to upgrade.

Purple brand mattresses have a grid design that is supposed to be more comfortable than even memory foam. Bonus: If you buy a Purple mattress right now you'll get a free set of sheets and a sleep mask — a value of up to $158.

There are three mattresses to choose from depending on how tall you want your bed and what kind of support and airflow you're looking for. Each mattress starts with that flexible, cushiony grid, and then they layer in different comfortable materials.

SEE ALSO: Got back pain? Online reviewers recommend these 10 mattresses.

As comfy as the mattresses are, you can expect Purple sheets to be of the same caliber. The sheets are super cozy and incredibly stretchy to accentuate the mattress's natural flex. The free sleep mask is more than just your ordinary sleep mask — it's weighted to give you the perfect pressure for sleeping.

Mattresses start at $649, and you'll save up to $158 on the sheets and sleep mask depending on the size of the mattress you select.