Sleep Number i8 Smart Bed Review: Is It Worth It? (2026 Engineer Test)

This sleep number i8 review documents 30+ nights of overnight testing, lab-measured firmness on our load-cell rig, and side-by-side comparisons against the category leaders we've personally slept on.

What you'll find on this page about sleep number i8: lab-measured scores, hands-on testing notes, our recommended buyer profile, current pricing intelligence, and a clear verdict from the Sleep Sage editorial team. Page last reviewed August 2026.

Hands-on Sleep Number i8 Smart Bed review by Sleep Sage. Adjustable firmness with sleep tracking technology Lab-measured firmness, cooling, edge support, and