We all have unique bodies and quirks that contribute to our shut-eye preferences — but, ultimately, the best mattresses should allow us to sleep happily and soundly. Whether you’re a side, back, or stomach sleeper, there’s one factor to look for when selecting the right mattress brand: one that keeps your spine aligned while applying supportive pressure evenly to your body (kind of like a hug). The rest, like size and material preference, is pretty variable. Each of the R29 testers ahead used their own unique set of parameters to evaluate the individual mattress they tested — everything including foam models, hybrid innerspring and padded, sleep surfaces made with cooling materials, and sustainably made mattresses.
