Best mattress for back pain? Will Harlow's first point

In a 2023 YouTube video on choosing a mattress for back pain, the physiotherapist Will Harlow, whose channel is aimed at people over fifty, starts with a night most of us know. You sleep at a friend's house or in a hotel, and you wake up either stiff and sore, or better than you've felt in weeks. Before any advice on what to buy, in that video, Harlow makes one point first:

"a mattress that would work well for me might not work very well for you"

Will Harlow, YouTube, 2023

So, Harlow says, a lot of it comes down to trial and error.

The myth it answers

Search "best mattress for back pain" and you'll find product lists and firm rules. One of the most repeated rules is that a bad back needs a hard bed, or even the floor. A 2015 video by the chiropractor Alan Mandell, arguing that sleeping on the floor beats a mattress, has more than a million views. The idea is easy to understand: firm feels supportive. The one trial we hold points the other way.

We only had the trial's summary, so this article gives no numbers from it. It is also one trial, comparing two firmness levels, which fits Harlow's point: there's no single right mattress, only the one that suits you.

Harlow goes on to say the right mattress can help you get better faster, and to recommend buying one with a long trial period. Neither comes from research we hold, so this article leaves them out. Harlow's channel also sells a book and an online mobility program; nothing here depends on them.

What matters more than the mattress

Nights do matter for backs, but mostly through sleep itself. In a diary study, 105 adults with long-lasting back pain rated their sleep and pain five times a day for 14 days. After a worse night, pain was higher the next day, most of all soon after waking. The effects were small, and it shows a link, not a cause (Gerhart et al, 2017).

So if your mornings are bad, the question may be less "which mattress?" and more "what kind of night was it?" A steadier wake time is usually easier to change than a bed.

One thing to tell apart: pain that is worse at night, or doesn't change at all when you move or rest, is different from stiffness after a poor night. The program's check lists it as a reason to see a doctor first.

How this fits the Manage back pain program

In the 1h Protocol to Manage Back Pain, the Volume Knob is the pattern where bad days follow a poor night or a heavy week, and you start by moving gently first after a poor night. Its nights line is simple: a steady wind-down and wake time, most days, with one fixed point when nights aren't yours to plan. The firm-bed myth is answered in the program too, and there's nothing to buy: no mattress, chair, belt or brace, and no app. The first chapter is free.

Source: Will Harlow, How to choose the right mattress for back pain and sciatica, 27 Mar 2023 Research: Kovacs et al, 2003 · Gerhart et al, 2017