My Spreadsheet Doesn't Lie: Why My Memory Only Works When My Sleep Score Hits the Green

Sleep tracking scores compared with memory test results for brain health and cognitive function

Which column would you trust more, the one where you log your supplements, or the one your sleep tracker fills in while you snore? I keep both for the sake of my brain health, and for a long stretch they told me opposite stories about my memory. Sleep tracking on one side, the capsule shelf on the other, and me playing both the accountant and the defendant.

Quick transparency note before the ledger opens. This site uses affiliate links, so I may earn a commission if you buy through them, at no extra cost to you. I only write about products I've tracked myself. I'm not a doctor or a neuroscientist — just a retired accountant with a spreadsheet. Talk to your own doctor before changing your routine.

Short version: on my sheet, the sleep column predicted my recall scores far better than the supplement column ever did.

Comparing Two Routes to Memory Improvement

Most advertising points you toward Route A: add something to the daily routine and wait for the numbers to climb. I ran that route hard. A neighbor swore by a B-complex, and I gave it a fair trial, yet my word-list scores sat exactly where they had been: same middling numbers, just one more bottle in the lineup. The low shelf in my office holds every bottle in the order I started it, and that B-complex sits in the row like a receipt for something I'd rather forget. My "subjective clarity" column was no better. I was too foggy to remember what a four felt like next to yesterday's six, and subjective data is a nightmare to audit.

Route B needs no shopping cart. The wearable on my wrist already recorded my nights, but I had only ever glanced at total hours. Once I lined up sleep quality against my morning word-list test, the pattern was hard to argue with. On mornings when my recall landed in the bottom 10% of my own scores, my deep sleep share had slipped under 20%, the line I had set on my sheet as green. The reverse held up too. The workbook has more tabs than our old joint tax returns ever did, and this was the first tab that made me stop scrolling.

Red nights, red recall.

Sleep tracking wearable on a wrist beside a notebook of memory improvement test scores

What Was Going On During the Red Nights?

I'm no biologist, so I'll stay in my lane and report only the ledger. If you want the science, Wikipedia has pages on the Glymphatic system and on Memory consolidation, and those pages will serve you better than my guesses. In accounting terms, sleep looked like overhead, a cost you can't skip and still show a profit.

My wife rolled her eyes when I tried to present the link between my sleep score and the missing spare car keys. The numbers were right there in black and white, though, and I have a spreadsheet limit of 1,048,576 rows per sheet that I half expected to use up proving it.

Standard Sleep Advice Makes a Poor Audit for Night Shifts

Most sleep advice assumes a nine-to-five life. Dark room, same bedtime every night, done. A neighbor who works nights as a nurse just laughed when I repeated it to her, because her schedule cooperates with none of it. Advice like that is a bad audit; it measures a business she isn't running.

My own version was smaller but similar. I stay up past 2:00 AM auditing my own numbers, which puts me on a pseudo-night shift in a house where everyone else keeps daytime hours. Brain health turned out to be a set of linked accounts, not one line item. The tracking setup behind all this is written up in My Spreadsheet vs. My Memory: Tracking Brain Health After Three Decades of Numbers.

Pam Godfrey, from down the street, dropped off a casserole around then. She does that whenever my testing runs long.

Putting The Brain Song Beside NeuroPrime

Traditional sleep hygiene gave me mediocre results, and my deep sleep numbers stayed flat. So I ran a controlled trial of something outside my capsule comfort zone: an audio-based product called The Brain Song. To an old accountant, listening to a frequency to help your brain sounds like a too-good-to-be-true investment pitch. The audio approach can feel unconventional if you're skeptical, and the company is fairly new, so its track record is still developing. I went in skeptical anyway.

On the nights I used it, my tracker's deep sleep number reached 22%, the first green I'd seen on that column in a while. I didn't feel wired or caffeinated. I just felt organized, as if someone had filed the loose papers on my desk while I was out. Over the stretch I kept it going, my word-list recall came out nearly 15% higher. That's no miracle, but a gain like that is a big return in this line of work. It is one man's spreadsheet, not a clinical trial, so weigh it that way. My longer notes are in Does The Brain Song Help Clear Brain Fog After Retirement?

The capsule side of the comparison got a fair hearing too. NeuroPrime is a traditional capsule for people who prefer a conventional supplement, and I found it useful for daytime focus. It just didn't move my sleep-to-memory numbers the way the audio did. Different tools, different jobs: one lined up with my afternoons, the other with how my nights scored.

Vernon Ashby, the neighbor who runs his own separate trial, squints at anything with a hefty monthly cost. He made me put the cheapest column first, meaning the sleep data from a tracker I already owned. Annoyingly, he had a point.

Choose Your Starting Column Before You Buy Anything

Halfway through a sentence to my son-in-law at Central Market on Lovers Lane, a word that had dodged me for three days simply showed up. No digging, no pause, no fishing around for it. I didn't reach for my phone to log it. I kept talking, and the sheet confirmed it later: the red cells were gone.

So here is the verdict, in accounting terms. Choose the sleep column first when your recall wobbles and your nights are ragged: late screens, odd shifts, a tracker full of red. Choose the capsule column first when your sleep numbers hold steady in the green and your recall still lags, and then test one daytime product alone, not stacked with anything else. Whether you use something like The Brain Song to work on your nights or find another route to that 20% mark, the goal is the same: balance the books before you try to grow the business.

I still track every day, of course. My wife says I'll be the only person in a nursing home with a spreadsheet for his Jell-O flavors, but as long as I can remember the names of my visitors, I'll call that a passing audit. If you want a place to start your own comparison, my notes on NeuroPrime vs Brain Song for Better Name Recall and Memory lay the two side by side.

Disclaimer: The information on this site is based on personal experience and research for informational purposes only. It is not a substitute for professional medical, financial, or legal advice. Always consult a qualified professional before making decisions that affect your health or finances.