Whether you have a soft or firm mattress or something in between ... There are primarily three main parts inside a mattress.

An extra-firm mattress makes a difference in your alignment and sleep quality. Our picks for the best extra-firm mattresses include Plank Firm, Titan Plus and others.

If you’re the type of person who would be happy snoozing on hardwood or resting on concrete, you’re probably already in the market for a firm mattress. But even if you don’t think you’re a ...

This is where the Plank Firm Luxe mattress stands out. It offers a competitive price and includes features that aren't available in the more budget-friendly Plank Firm base model -- most notably ...

Mini review: The NASA-developed Tempur foam inside this luxury mattress offers ... Mini review: A firm and cool mattress that keeps your spine aligned when stomach sleeping. A 22% saving with ...

Inside the double version of this mattress there are 2,565 pocket springs – the king size has 3,000. This helps provide firm and even support throughout and helped to ensure good pressure relief ...