We tested Saatva Classic’s luxury firm model for 30 nights. My husband Dillon and I are CNET’s sleep experts. We've spent years testing and reviewing all mattress- and sleep-related things.

Despite having all this experience, I frequently joke about the ironic fact that we still struggle to get quality rest. That's because of something many couples experience -- my sleeping positions and preferences are much different than Dillon’s. Dillon is a night owl, and I’m an early bird .

He sleeps better in a quiet room, while I sleep better with a noise machine . I like to sleep in the pitch black , and Dillon wouldn’t even notice if a construction-grade work light illuminated the entire bedroom all night. I enjoy cuddling with our pets on the bed and he doesn't.

Fortunately, after much trial and error and trying various sleep products , Dillon and I have found solutions for most of these differences. However, the most significant difference we haven't yet resolved is our sleeping positions . Dillon is a side sleeper , and he likes soft mattresses that offer plenty of pressure relief for his shoulders and hips.

I prefer a firmer mattress since I usually fall asleep on my stomach , so I need my spine in neutral alignment. It’s been a challenge to find a bed we both find comfortable and accommodating -- thus began our hunt for the perfect mattress. In our 30-Night Mattress Testing Series, Dillon and I will test a different mattress each month and document the entire process.