Lunawake Insights

Amazon lists 50,000+ "sleep aids."

90% are useless.

9% are overpriced.

Maybe 1% actually improve how you feel in the morning.

Let's find that 1%.

The Sleep Gadget Industrial Complex

Sleep is a $70 billion industry.¹ That's a lot of money chasing a lot of desperate, sleep-deprived people.

When you can't sleep, you'll try anything. Weighted blankets. Sound machines. Cooling mattress pads. "Sleep headphones." Supplements with names like "Dream Nectar" and "Slumber Pro."

Most of it doesn't work. Some of it works a little. Almost none of it addresses the underlying problem.

Here's my framework for cutting through the noise:

Category 1: Sensors (Worth Buying If You'll Use the Data)

These devices measure things. They don't fix anything by themselves—but data is the foundation of informed change.

Apple Watch (Series 8+) or Ultra

Verdict: Worth it if you already have one

Best-in-class heart rate variability (HRV) tracking. Sleep stage detection is mediocre but improving. The real value is the Apple Health ecosystem—your data is portable, integrates with other apps, and isn't locked behind a subscription.

Downside: overnight battery drain is annoying. Some people can't sleep with a watch on.

Oura Ring (Gen 3)

Verdict: Worth it for dedicated sleep trackers

Best skin temperature tracking, excellent HRV, unobtrusive form factor. The monthly subscription after year one is frustrating, but the hardware is genuinely more comfortable for sleep than a watch.

Downside: no real-time display, so you can't check data in the night. Some accuracy concerns in peer-reviewed comparisons.²

Dedicated Radar Devices (Lunawake, Sleeptracker, etc.)

Verdict: Worth it as a complement to wearables

Non-contact sensing fills the gaps that wearables miss—particularly sleep onset detection and distinguishing "lying awake" from "actually asleep." A bedside radar doesn't require charging, doesn't need to be worn, and measures room-level activity.

Downside: early market, fewer validated studies than wearables.

The Honest Take

You don't need any of these. A paper sleep diary works. But if you're the type of person who responds to data—who wants charts and trends and numbers—sensors can motivate behavioral change that otherwise wouldn't happen.

Just remember: tracking sleep doesn't improve sleep. Changing behavior based on tracking does.

Category 2: Interventions (Some Evidence, Caveats Apply)

These devices or products claim to actively improve sleep. The evidence varies from solid to wishful thinking.

Blue Light Blocking Glasses

Verdict: Modest effect, cheap enough to try

The theory: blue-enriched light suppresses melatonin production. Blocking it in the evening should help you fall asleep faster.

The reality: studies show a small but real effect on sleep onset and subjective sleep quality.³ The effect size is modest—don't expect miracles. And the real intervention is simply dimming lights and avoiding screens, which glasses can make more convenient.

Cost: $10-30 for effective amber-tinted lenses. Ignore the expensive "gaming glasses" that barely filter anything.

Weighted Blankets

Verdict: Effective for anxiety, less clear for sleep itself

Weighted blankets provide deep pressure stimulation, which can reduce anxiety and promote relaxation. Several studies show benefits for people with anxiety disorders or autism.⁴

For insomnia specifically? The evidence is weaker. If your sleep problems stem from anxiety, this might help. If your issue is poor sleep architecture or circadian misalignment, a heavy blanket won't fix that.

Cost: $50-150 for a quality blanket. Get one that's about 10% of your body weight.

White Noise Machines

Verdict: Conditional benefit

White noise (or pink noise, or brown noise) helps some people by masking environmental sounds and providing consistent auditory input. It's particularly useful if you live in a noisy environment or if silence makes you anxious.

But there's no evidence it improves sleep quality in quiet environments. And becoming dependent on noise to fall asleep can create problems when traveling or during power outages.

The Dohm and LectroFan are solid choices if you go this route. Skip apps—your phone should be out of the bedroom.

Cooling Mattress Pads (Eight Sleep, Chili)

Verdict: Promising but expensive

Temperature regulation is genuinely important for sleep. Your core body temperature needs to drop by about 1°C for sleep onset.⁵ Cooling technology can facilitate this.

The Eight Sleep Pod has decent research behind it and integrates sleep tracking. But it costs $2,000+ and requires a subscription.

For most people: a cooler bedroom (65-68°F / 18-20°C), breathable sheets, and a fan accomplish 80% of the benefit at 5% of the cost.

Category 3: Skip These

Products with weak evidence, pseudoscience, or predatory marketing.

Most Supplements

"Natural sleep aids" are largely unregulated and frequently ineffective.

Melatonin: useful for jet lag and circadian disorders, but most people take way too much. Effective doses are 0.3-0.5mg, not the 5-10mg tablets you see everywhere. And it doesn't help with sleep maintenance—only onset.

Valerian, chamomile, passionflower: weak evidence at best. Harmless, but probably placebo.

CBD: the research is genuinely mixed. Some studies suggest modest benefits for anxiety-related sleep issues. Many products have questionable quality and dosing.

"Sleep gummies" with proprietary blends: marketing, not medicine.

Sleep Headphones and "Smart" Pillows

These products combine poor audio quality with uncomfortable design. If you need audio to sleep, standard earbuds or a speaker work better.

Expensive Mattresses

Beyond a basic threshold of comfort and support, mattress upgrades don't improve sleep quality. A $5,000 mattress doesn't help you sleep better than a $1,000 one.

If your mattress is causing pain, replace it. Otherwise, save your money for interventions that target behavior.

Aromatherapy and "Sleep Sprays"

Lavender smells nice. There's no clinical evidence it meaningfully improves sleep outcomes.

The Hidden Variable None of This Addresses

Here's the uncomfortable truth: no gadget, device, or supplement replaces behavioral change.

You can buy a $3,000 cooling mattress pad, wear an Oura ring, block blue light, and take melatonin—and still have terrible sleep. Because the underlying problem isn't temperature or light exposure or melatonin deficiency.

The underlying problem is usually:

Spending too much time in bed awake
Irregular sleep schedules
Anxious associations with the bedroom
Caffeine, alcohol, or stimulation too close to bedtime

These are behavioral issues. They require behavioral solutions. That's CBT-I.

Everything else is optimization. Fine-tuning on top of a solid foundation. Without the foundation, the fine-tuning is pointless.

Our Philosophy at Lunawake

We make a radar-based sleep sensing device. We're obviously biased.

But here's our honest position: hardware alone doesn't fix insomnia. We built Lunawake because we believe better data enables better behavioral coaching. The radar is a means to an end—more accurate sleep detection that feeds into CBT-I protocols delivered by Luna, our electronic doctor.

If you buy our device and don't engage with the coaching, you've bought an expensive nightlight.

We trust the combination of radar + wearables + evidence-based behavioral intervention. We distrust any gadget claiming to fix your sleep passively while you do nothing differently.

The Bottom Line

If you're going to spend money, prioritize in this order:

Make your bedroom dark, quiet, and cool. Blackout curtains, maybe a fan. $100 total.
Start a sleep diary. Free.
Implement CBT-I. Free with self-guided approach, or use an app like Lunawake.
Get a wearable if data motivates you. Apple Watch or Oura. $300-500.
Consider specialty devices only after behavioral fundamentals are in place. Radar, cooling technology, etc.

The best sleep gadget is a dark room, a cool temperature, and a consistent wake time.

Everything else is optimization.

Grand View Research. (2023). "Sleep Aids Market Size, Share & Trends Analysis Report." [Industry report] ↩
Stone, J.D., et al. (2021). "Evaluations of Commercial Sleep Technologies for Objective Monitoring During Routine Sleeping Conditions." Nature and Science of Sleep, 13, 1477-1496. ↩
Shechter, A., et al. (2018). "Blocking nocturnal blue light for insomnia: A randomized controlled trial." Journal of Psychiatric Research, 96, 196-202. ↩
Ekholm, B., et al. (2020). "A randomized controlled study of weighted chain blankets for insomnia in psychiatric disorders." Journal of Clinical Sleep Medicine, 16(9), 1567-1577. ↩
Harding, E.C., et al. (2019). "The Temperature Dependence of Sleep." Frontiers in Neuroscience, 13, 336. ↩